402504050 has 96 divisors (see below), whose sum is σ = 845570880. Its totient is φ = 141523200.

The previous prime is 402504023. The next prime is 402504059. The reversal of 402504050 is 50405204.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (402504059) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2469269 + ... + 2469431.

It is an arithmetic number, because the mean of its divisors is an integer number (8808030).

Almost surely, 2^402504050 is an apocalyptic number.

402504050 is an abundant number, since it is smaller than the sum of its proper divisors (443066830).

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

402504050 is a wasteful number, since it uses less digits than its factorization.

402504050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 402504050 is about 20062.5035825542. The cubic root of 402504050 is about 738.3406023717.

Adding to 402504050 its reverse (50405204), we get a palindrome (452909254).

The spelling of 402504050 in words is "four hundred two million, five hundred four thousand, fifty".