404990859 has 32 divisors (see below), whose sum is σ = 665695744. Its totient is φ = 213269760.

The previous prime is 404990857. The next prime is 404990879. The reversal of 404990859 is 958099404.

It is not a de Polignac number, because 404990859 - 2¹ = 404990857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (404990857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 305919 + ... + 307239.

It is an arithmetic number, because the mean of its divisors is an integer number (20802992).

Almost surely, 2^404990859 is an apocalyptic number.

404990859 is a deficient number, since it is larger than the sum of its proper divisors (260704885).

404990859 is a wasteful number, since it uses less digits than its factorization.

404990859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2467.

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 404990859 is about 20124.3846862457. The cubic root of 404990859 is about 739.8580559253.

The spelling of 404990859 in words is "four hundred four million, nine hundred ninety thousand, eight hundred fifty-nine".