404696916 has 36 divisors (see below), whose sum is σ = 1101676212. Its totient is φ = 124521984.

The previous prime is 404696893. The next prime is 404696927. The reversal of 404696916 is 619696404.

It can be written as a sum of positive squares in 2 ways, for example, as 93315600 + 311381316 = 9660^2 + 17646^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×404696916² = 327559187639822112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 431901 + ... + 432836.

It is an arithmetic number, because the mean of its divisors is an integer number (30602117).

Almost surely, 2^404696916 is an apocalyptic number.

It is an amenable number.

404696916 is an abundant number, since it is smaller than the sum of its proper divisors (696979296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404696916 is a wasteful number, since it uses less digits than its factorization.

404696916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864760 (or 864755 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 404696916 is about 20117.0802056362. The cubic root of 404696916 is about 739.6790158904.

The spelling of 404696916 in words is "four hundred four million, six hundred ninety-six thousand, nine hundred sixteen".