16404674 has 32 divisors (see below), whose sum is σ = 29635200. Its totient is φ = 6710400.

The previous prime is 16404671. The next prime is 16404679. The reversal of 16404674 is 47640461.

It is a super-2 number, since 2×16404674² = 538226658092552, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16404674.

It is not an unprimeable number, because it can be changed into a prime (16404671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11027 + ... + 12425.

It is an arithmetic number, because the mean of its divisors is an integer number (926100).

Almost surely, 2^16404674 is an apocalyptic number.

16404674 is a deficient number, since it is larger than the sum of its proper divisors (13230526).

16404674 is a wasteful number, since it uses less digits than its factorization.

16404674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 16404674 is about 4050.2683861690. The cubic root of 16404674 is about 254.0909526097.

The spelling of 16404674 in words is "sixteen million, four hundred four thousand, six hundred seventy-four".