402100804 has 24 divisors (see below), whose sum is σ = 813895488. Its totient is φ = 170251680.

The previous prime is 402100723. The next prime is 402100807. The reversal of 402100804 is 408001204.

It is not an unprimeable number, because it can be changed into a prime (402100807) 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, 84187 + ... + 88834.

It is an arithmetic number, because the mean of its divisors is an integer number (33912312).

Almost surely, 2^402100804 is an apocalyptic number.

It is an amenable number.

402100804 is an abundant number, since it is smaller than the sum of its proper divisors (411794684).

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

402100804 is a wasteful number, since it uses less digits than its factorization.

402100804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173115 (or 173113 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 402100804 is about 20052.4513214719. The cubic root of 402100804 is about 738.0939527813.

The spelling of 402100804 in words is "four hundred two million, one hundred thousand, eight hundred four".