402240642204 has 24 divisors (see below), whose sum is σ = 987959472640. Its totient is φ = 127023360624.

The previous prime is 402240642169. The next prime is 402240642227. The reversal of 402240642204 is 402246042204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 882106444 + ... + 882106899.

Almost surely, 2^402240642204 is an apocalyptic number.

It is an amenable number.

402240642204 is an abundant number, since it is smaller than the sum of its proper divisors (585718830436).

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

402240642204 is a wasteful number, since it uses less digits than its factorization.

402240642204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1764213369 (or 1764213367 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 402240642204 its reverse (402246042204), we get a palindrome (804486684408).

The spelling of 402240642204 in words is "four hundred two billion, two hundred forty million, six hundred forty-two thousand, two hundred four".