16406252 has 12 divisors (see below), whose sum is σ = 28990416. Its totient is φ = 8123280.

The previous prime is 16406251. The next prime is 16406261. The reversal of 16406252 is 25260461.

It is not an unprimeable number, because it can be changed into a prime (16406251) 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, 19499 + ... + 20322.

It is an arithmetic number, because the mean of its divisors is an integer number (2415868).

Almost surely, 2^16406252 is an apocalyptic number.

It is an amenable number.

16406252 is a deficient number, since it is larger than the sum of its proper divisors (12584164).

16406252 is a wasteful number, since it uses less digits than its factorization.

16406252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39928 (or 39926 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 16406252 is about 4050.4631833903. The cubic root of 16406252 is about 254.0990995290.

The spelling of 16406252 in words is "sixteen million, four hundred six thousand, two hundred fifty-two".