402938031076 has 27 divisors (see below), whose sum is σ = 820284797577. Its totient is φ = 172683918960.

The previous prime is 402938031061. The next prime is 402938031103. The reversal of 402938031076 is 670130839204.

The square root of 402938031076 is 634774.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1438381476 + 401499649600 = 37926^2 + 633640^2 .

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 8864166 + ... + 8909506.

Almost surely, 2^402938031076 is an apocalyptic number.

402938031076 is the 634774-th square number.

It is an amenable number.

402938031076 is an abundant number, since it is smaller than the sum of its proper divisors (417346766501).

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

402938031076 is an frugal number, since it uses more digits than its factorization.

402938031076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90700 (or 45350 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 402938031076 in words is "four hundred two billion, nine hundred thirty-eight million, thirty-one thousand, seventy-six".