16406812 has 12 divisors (see below), whose sum is σ = 29638336. Its totient is φ = 7938720.

The previous prime is 16406777. The next prime is 16406813. The reversal of 16406812 is 21860461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16406813) by changing a digit.

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, 66033 + ... + 66280.

Almost surely, 2^16406812 is an apocalyptic number.

It is an amenable number.

16406812 is a deficient number, since it is larger than the sum of its proper divisors (13231524).

16406812 is a wasteful number, since it uses less digits than its factorization.

16406812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132348 (or 132346 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 16406812 is about 4050.5323106970. The cubic root of 16406812 is about 254.1019905789.

The spelling of 16406812 in words is "sixteen million, four hundred six thousand, eight hundred twelve".