402050900 has 36 divisors (see below), whose sum is σ = 873498780. Its totient is φ = 160627200.

The previous prime is 402050893. The next prime is 402050927. The reversal of 402050900 is 9050204.

It can be written as a sum of positive squares in 6 ways, for example, as 13645636 + 388405264 = 3694^2 + 19708^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105020 + ... + 108780.

It is an arithmetic number, because the mean of its divisors is an integer number (24263855).

Almost surely, 2^402050900 is an apocalyptic number.

It is an amenable number.

402050900 is an abundant number, since it is smaller than the sum of its proper divisors (471447880).

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

402050900 is a wasteful number, since it uses less digits than its factorization.

402050900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4844 (or 4837 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 402050900 is about 20051.2069462165. The cubic root of 402050900 is about 738.0634170184.

The spelling of 402050900 in words is "four hundred two million, fifty thousand, nine hundred".