405564716 has 12 divisors (see below), whose sum is σ = 751487688. Its totient is φ = 190853952.

The previous prime is 405564707. The next prime is 405564737. The reversal of 405564716 is 617465504.

It is a self number, because there is not a number n which added to its sum of digits gives 405564716.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2982026 + ... + 2982161.

It is an arithmetic number, because the mean of its divisors is an integer number (62623974).

Almost surely, 2^405564716 is an apocalyptic number.

It is an amenable number.

405564716 is a deficient number, since it is larger than the sum of its proper divisors (345922972).

405564716 is a wasteful number, since it uses less digits than its factorization.

405564716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5964208 (or 5964206 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 405564716 is about 20138.6373918396. The cubic root of 405564716 is about 740.2073414611.

The spelling of 405564716 in words is "four hundred five million, five hundred sixty-four thousand, seven hundred sixteen".