404049988 has 6 divisors (see below), whose sum is σ = 707087486. Its totient is φ = 202024992.

The previous prime is 404049979. The next prime is 404050013. The reversal of 404049988 is 889940404.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 205578244 + 198471744 = 14338^2 + 14088^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50506245 + ... + 50506252.

Almost surely, 2^404049988 is an apocalyptic number.

It is an amenable number.

404049988 is a deficient number, since it is larger than the sum of its proper divisors (303037498).

404049988 is a wasteful number, since it uses less digits than its factorization.

404049988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101012501 (or 101012499 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 404049988 is about 20100.9947017554. The cubic root of 404049988 is about 739.2846678792.

The spelling of 404049988 in words is "four hundred four million, forty-nine thousand, nine hundred eighty-eight".