398625090402 has 64 divisors (see below), whose sum is σ = 999719967744. Its totient is φ = 102940472640.

The previous prime is 398625090401. The next prime is 398625090431. The reversal of 398625090402 is 204090526893.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (398625090401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2413788 + ... + 2573639.

It is an arithmetic number, because the mean of its divisors is an integer number (15620624496).

Almost surely, 2^398625090402 is an apocalyptic number.

398625090402 is an abundant number, since it is smaller than the sum of its proper divisors (601094877342).

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

398625090402 is a wasteful number, since it uses less digits than its factorization.

398625090402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4987623.

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 398625090402 in words is "three hundred ninety-eight billion, six hundred twenty-five million, ninety thousand, four hundred two".