402050052 has 18 divisors (see below), whose sum is σ = 1016293278. Its totient is φ = 134016672.

The previous prime is 402050027. The next prime is 402050053. The reversal of 402050052 is 250050204.

It can be written as a sum of positive squares in only one way, i.e., 401842116 + 207936 = 20046^2 + 456^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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 (402050053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5583993 + ... + 5584064.

Almost surely, 2^402050052 is an apocalyptic number.

It is an amenable number.

402050052 is an abundant number, since it is smaller than the sum of its proper divisors (614243226).

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

402050052 is a wasteful number, since it uses less digits than its factorization.

402050052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11168067 (or 11168062 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 402050052 is about 20051.1858003461. The cubic root of 402050052 is about 738.0628981137.

The spelling of 402050052 in words is "four hundred two million, fifty thousand, fifty-two".