402012332 has 24 divisors (see below), whose sum is σ = 722701056. Its totient is φ = 195563088.

The previous prime is 402012323. The next prime is 402012337. The reversal of 402012332 is 233210204.

It is a super-2 number, since 2×402012332² = 323227830160156448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 402012332.

It is not an unprimeable number, because it can be changed into a prime (402012337) 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 7 ways as a sum of consecutive naturals, for example, 40793 + ... + 49679.

It is an arithmetic number, because the mean of its divisors is an integer number (30112544).

Almost surely, 2^402012332 is an apocalyptic number.

It is an amenable number.

402012332 is a deficient number, since it is larger than the sum of its proper divisors (320688724).

402012332 is a wasteful number, since it uses less digits than its factorization.

402012332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9197 (or 9195 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 402012332 is about 20050.2451855333. The cubic root of 402012332 is about 738.0398159104.

Adding to 402012332 its reverse (233210204), we get a palindrome (635222536).

The spelling of 402012332 in words is "four hundred two million, twelve thousand, three hundred thirty-two".