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402894 = 235829
BaseRepresentation
bin1100010010111001110
3202110200000
41202113032
5100343034
612345130
73265422
oct1422716
9673600
10402894
11255778
121751a6
131114cb
14a6b82
157e599
hex625ce

402894 has 24 divisors (see below), whose sum is σ = 906360. Its totient is φ = 134136.

The previous prime is 402881. The next prime is 402923. The reversal of 402894 is 498204.

It can be divided in two parts, 402 and 894, that added together give a 4-th power (1296 = 64).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a plaindrome in base 11.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 402894.

It is an unprimeable number.

402894 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72 + ... + 900.

It is an arithmetic number, because the mean of its divisors is an integer number (37765).

2402894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (453180).

402894 is an abundant number, since it is smaller than the sum of its proper divisors (503466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402894 is an equidigital number, since it uses as much as digits as its factorization.

402894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846 (or 834 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 402894 is about 634.7393165702. The cubic root of 402894 is about 73.8578962697.

The spelling of 402894 in words is "four hundred two thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 9 18 27 54 81 162 243 486 829 1658 2487 4974 7461 14922 22383 44766 67149 134298 201447 402894