404616836 has 24 divisors (see below), whose sum is σ = 787148544. Its totient is φ = 180721440.

The previous prime is 404616833. The next prime is 404616841. The reversal of 404616836 is 638616404.

It is a self number, because there is not a number n which added to its sum of digits gives 404616836.

It is not an unprimeable number, because it can be changed into a prime (404616833) 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, 123890 + ... + 127113.

It is an arithmetic number, because the mean of its divisors is an integer number (32797856).

Almost surely, 2^404616836 is an apocalyptic number.

It is an amenable number.

404616836 is a deficient number, since it is larger than the sum of its proper divisors (382531708).

404616836 is a wasteful number, since it uses less digits than its factorization.

404616836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251051 (or 251049 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 404616836 is about 20115.0897586861. The cubic root of 404616836 is about 739.6302243127.

The spelling of 404616836 in words is "four hundred four million, six hundred sixteen thousand, eight hundred thirty-six".