402036012 has 36 divisors (see below), whose sum is σ = 1161438096. Its totient is φ = 114867360.

The previous prime is 402035989. The next prime is 402036013. The reversal of 402036012 is 210630204.

It is a happy number.

402036012 is a `hidden beast` number, since 40 + 20 + 3 + 601 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (402036013) 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 11 ways as a sum of consecutive naturals, for example, 797439 + ... + 797942.

Almost surely, 2^402036012 is an apocalyptic number.

402036012 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

402036012 is an abundant number, since it is smaller than the sum of its proper divisors (759402084).

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

402036012 is a wasteful number, since it uses less digits than its factorization.

402036012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595398 (or 1595393 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 402036012 is about 20050.8356933071. The cubic root of 402036012 is about 738.0543067094.

Adding to 402036012 its reverse (210630204), we get a palindrome (612666216).

The spelling of 402036012 in words is "four hundred two million, thirty-six thousand, twelve".