16404812 has 12 divisors (see below), whose sum is σ = 28977480. Its totient is φ = 8125536.

The previous prime is 16404811. The next prime is 16404821. The reversal of 16404812 is 21840461.

16404812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (16404811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18737 + ... + 19592.

It is an arithmetic number, because the mean of its divisors is an integer number (2414790).

Almost surely, 2^16404812 is an apocalyptic number.

It is an amenable number.

16404812 is a deficient number, since it is larger than the sum of its proper divisors (12572668).

16404812 is a wasteful number, since it uses less digits than its factorization.

16404812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38440 (or 38438 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 16404812 is about 4050.2854220413. The cubic root of 16404812 is about 254.0916650987.

The spelling of 16404812 in words is "sixteen million, four hundred four thousand, eight hundred twelve".