855826404 has 48 divisors (see below), whose sum is σ = 2038901760. Its totient is φ = 279302400.

The previous prime is 855826399. The next prime is 855826421. The reversal of 855826404 is 404628558.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381117 + ... + 383355.

It is an arithmetic number, because the mean of its divisors is an integer number (42477120).

Almost surely, 2^855826404 is an apocalyptic number.

It is an amenable number.

855826404 is an abundant number, since it is smaller than the sum of its proper divisors (1183075356).

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

855826404 is a wasteful number, since it uses less digits than its factorization.

855826404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2900 (or 2898 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 42.

The square root of 855826404 is about 29254.5108316649. The cubic root of 855826404 is about 949.4276900100.

The spelling of 855826404 in words is "eight hundred fifty-five million, eight hundred twenty-six thousand, four hundred four".