404626494 has 16 divisors (see below), whose sum is σ = 819004032. Its totient is φ = 133250328.

The previous prime is 404626447. The next prime is 404626583. The reversal of 404626494 is 494626404.

It is a congruent number.

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, 405754 + ... + 406749.

It is an arithmetic number, because the mean of its divisors is an integer number (51187752).

Almost surely, 2^404626494 is an apocalyptic number.

404626494 is an abundant number, since it is smaller than the sum of its proper divisors (414377538).

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

404626494 is a wasteful number, since it uses less digits than its factorization.

404626494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812591.

The product of its (nonzero) digits is 165888, while the sum is 39.

The square root of 404626494 is about 20115.3298257821. The cubic root of 404626494 is about 739.6361091328.

The spelling of 404626494 in words is "four hundred four million, six hundred twenty-six thousand, four hundred ninety-four".