842806404 has 48 divisors (see below), whose sum is σ = 2383698240. Its totient is φ = 255395520.

The previous prime is 842806369. The next prime is 842806441. The reversal of 842806404 is 404608248.

842806404 is a `hidden beast` number, since 8 + 4 + 2 + 8 + 0 + 640 + 4 = 666.

It is a super-2 number, since 2×842806404² = 1420645269246822432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 353529 + ... + 355904.

It is an arithmetic number, because the mean of its divisors is an integer number (49660380).

Almost surely, 2^842806404 is an apocalyptic number.

It is an amenable number.

842806404 is an abundant number, since it is smaller than the sum of its proper divisors (1540891836).

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

842806404 is a wasteful number, since it uses less digits than its factorization.

842806404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709457 (or 709449 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The square root of 842806404 is about 29031.1281902719. The cubic root of 842806404 is about 944.5884022600.

The spelling of 842806404 in words is "eight hundred forty-two million, eight hundred six thousand, four hundred four".