404605090 has 16 divisors (see below), whose sum is σ = 728906688. Its totient is φ = 161704816.

The previous prime is 404605081. The next prime is 404605147. The reversal of 404605090 is 90506404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4312 + ... + 28771.

It is an arithmetic number, because the mean of its divisors is an integer number (45556668).

Almost surely, 2^404605090 is an apocalyptic number.

404605090 is a deficient number, since it is larger than the sum of its proper divisors (324301598).

404605090 is a wasteful number, since it uses less digits than its factorization.

404605090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34313.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 404605090 is about 20114.7977867042. The cubic root of 404605090 is about 739.6230671046.

The spelling of 404605090 in words is "four hundred four million, six hundred five thousand, ninety".