404930685 has 8 divisors (see below), whose sum is σ = 647889120. Its totient is φ = 215963024.

The previous prime is 404930681. The next prime is 404930707. The reversal of 404930685 is 586039404.

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

It is a cyclic number.

It is not a de Polignac number, because 404930685 - 2² = 404930681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404930681) 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, 13497675 + ... + 13497704.

It is an arithmetic number, because the mean of its divisors is an integer number (80986140).

Almost surely, 2^404930685 is an apocalyptic number.

It is an amenable number.

404930685 is a deficient number, since it is larger than the sum of its proper divisors (242958435).

404930685 is a wasteful number, since it uses less digits than its factorization.

404930685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26995387.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 404930685 is about 20122.8895787856. The cubic root of 404930685 is about 739.8214111280.

The spelling of 404930685 in words is "four hundred four million, nine hundred thirty thousand, six hundred eighty-five".