404380957 has 8 divisors (see below), whose sum is σ = 417992960. Its totient is φ = 390804480.

The previous prime is 404380931. The next prime is 404380967. The reversal of 404380957 is 759083404.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404380957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404380967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15358 + ... + 32320.

It is an arithmetic number, because the mean of its divisors is an integer number (52249120).

Almost surely, 2^404380957 is an apocalyptic number.

It is an amenable number.

404380957 is a deficient number, since it is larger than the sum of its proper divisors (13612003).

404380957 is a wasteful number, since it uses less digits than its factorization.

404380957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17763.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 404380957 is about 20109.2256688317. The cubic root of 404380957 is about 739.4864692542.

The spelling of 404380957 in words is "four hundred four million, three hundred eighty thousand, nine hundred fifty-seven".