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1230402 = 231943251
BaseRepresentation
bin100101100011001000010
32022111210110
410230121002
5303333102
642212150
713313115
oct4543102
92274713
101230402
11770468
124b4056
13341064
1424057c
1519486c
hex12c642

1230402 has 32 divisors (see below), whose sum is σ = 2661120. Its totient is φ = 378000.

The previous prime is 1230401. The next prime is 1230433. The reversal of 1230402 is 2040321.

It is not an unprimeable number, because it can be changed into a prime (1230401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4777 + ... + 5027.

It is an arithmetic number, because the mean of its divisors is an integer number (83160).

21230402 is an apocalyptic number.

1230402 is an abundant number, since it is smaller than the sum of its proper divisors (1430718).

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

1230402 is a wasteful number, since it uses less digits than its factorization.

1230402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1230402 is about 1109.2348714317. The cubic root of 1230402 is about 107.1557983099.

Adding to 1230402 its reverse (2040321), we get a palindrome (3270723).

The spelling of 1230402 in words is "one million, two hundred thirty thousand, four hundred two".