402102400156 has 12 divisors (see below), whose sum is σ = 704794385680. Its totient is φ = 200732575680.

The previous prime is 402102400153. The next prime is 402102400157. The reversal of 402102400156 is 651004201204.

It is a happy number.

It is a super-2 number, since 2×402102400156² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 402102400156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402102400153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79653261 + ... + 79658308.

Almost surely, 2^402102400156 is an apocalyptic number.

It is an amenable number.

402102400156 is a deficient number, since it is larger than the sum of its proper divisors (302691985524).

402102400156 is a wasteful number, since it uses less digits than its factorization.

402102400156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159312204 (or 159312202 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The spelling of 402102400156 in words is "four hundred two billion, one hundred two million, four hundred thousand, one hundred fifty-six".