404752406 has 8 divisors (see below), whose sum is σ = 607220544. Its totient is φ = 202345560.

The previous prime is 404752393. The next prime is 404752409. The reversal of 404752406 is 604257404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404752409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8756 + ... + 29768.

It is an arithmetic number, because the mean of its divisors is an integer number (75902568).

Almost surely, 2^404752406 is an apocalyptic number.

404752406 is a deficient number, since it is larger than the sum of its proper divisors (202468138).

404752406 is a wasteful number, since it uses less digits than its factorization.

404752406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30646.

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 404752406 is about 20118.4593346509. The cubic root of 404752406 is about 739.7128213640.

The spelling of 404752406 in words is "four hundred four million, seven hundred fifty-two thousand, four hundred six".