402191101904 has 40 divisors (see below), whose sum is σ = 860956413120. Its totient is φ = 181037424128.

The previous prime is 402191101901. The next prime is 402191101913. The reversal of 402191101904 is 409101191204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402191101901) 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, 32138174 + ... + 32150685.

It is an arithmetic number, because the mean of its divisors is an integer number (21523910328).

Almost surely, 2^402191101904 is an apocalyptic number.

It is an amenable number.

402191101904 is an abundant number, since it is smaller than the sum of its proper divisors (458765311216).

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

402191101904 is a wasteful number, since it uses less digits than its factorization.

402191101904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64288907 (or 64288901 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 402191101904 in words is "four hundred two billion, one hundred ninety-one million, one hundred one thousand, nine hundred four".