404162730 has 64 divisors (see below), whose sum is σ = 1088305920. Its totient is φ = 106723008.

The previous prime is 404162713. The next prime is 404162767. The reversal of 404162730 is 37261404.

404162730 is a `hidden beast` number, since 4 + 0 + 4 + 1 + 627 + 30 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 404162694 and 404162703.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20544 + ... + 35076.

It is an arithmetic number, because the mean of its divisors is an integer number (17004780).

Almost surely, 2^404162730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404162730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (544152960).

404162730 is an abundant number, since it is smaller than the sum of its proper divisors (684143190).

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

404162730 is a wasteful number, since it uses less digits than its factorization.

404162730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14652 (or 14646 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 404162730 is about 20103.7988947363. The cubic root of 404162730 is about 739.3534223101.

The spelling of 404162730 in words is "four hundred four million, one hundred sixty-two thousand, seven hundred thirty".