402204932639 has 8 divisors (see below), whose sum is σ = 404695625568. Its totient is φ = 399721916160.

The previous prime is 402204932627. The next prime is 402204932651. The reversal of 402204932639 is 936239402204.

It is an interprime number because it is at equal distance from previous prime (402204932627) and next prime (402204932651).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402204932639 - 2⁸ = 402204932383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 402204932639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402204932039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1813982 + ... + 2023595.

It is an arithmetic number, because the mean of its divisors is an integer number (50586953196).

Almost surely, 2^402204932639 is an apocalyptic number.

402204932639 is a deficient number, since it is larger than the sum of its proper divisors (2490692929).

402204932639 is a wasteful number, since it uses less digits than its factorization.

402204932639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3838225.

The product of its (nonzero) digits is 559872, while the sum is 44.

The spelling of 402204932639 in words is "four hundred two billion, two hundred four million, nine hundred thirty-two thousand, six hundred thirty-nine".