12057402 has 32 divisors (see below), whose sum is σ = 27827712. Its totient is φ = 3411504.

The previous prime is 12057401. The next prime is 12057407. The reversal of 12057402 is 20475021.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (12057401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3153 + ... + 5835.

It is an arithmetic number, because the mean of its divisors is an integer number (869616).

Almost surely, 2^12057402 is an apocalyptic number.

12057402 is an abundant number, since it is smaller than the sum of its proper divisors (15770310).

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

12057402 is a wasteful number, since it uses less digits than its factorization.

12057402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 12057402 is about 3472.3769956616. The cubic root of 12057402 is about 229.3073173533.

The spelling of 12057402 in words is "twelve million, fifty-seven thousand, four hundred two".