404627634 has 24 divisors (see below), whose sum is σ = 900389100. Its totient is φ = 131230368.

The previous prime is 404627621. The next prime is 404627677. The reversal of 404627634 is 436726404.

It can be written as a sum of positive squares in 2 ways, for example, as 404130609 + 497025 = 20103^2 + 705^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 303109 + ... + 304440.

Almost surely, 2^404627634 is an apocalyptic number.

404627634 is an abundant number, since it is smaller than the sum of its proper divisors (495761466).

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

404627634 is a wasteful number, since it uses less digits than its factorization.

404627634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607594 (or 607591 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 36.

The square root of 404627634 is about 20115.3581623594. The cubic root of 404627634 is about 739.6368037523.

The spelling of 404627634 in words is "four hundred four million, six hundred twenty-seven thousand, six hundred thirty-four".