16407172 has 6 divisors (see below), whose sum is σ = 28712558. Its totient is φ = 8203584.

The previous prime is 16407113. The next prime is 16407173. The reversal of 16407172 is 27170461.

16407172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10086976 + 6320196 = 3176^2 + 2514^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16407172.

It is not an unprimeable number, because it can be changed into a prime (16407173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2050893 + ... + 2050900.

Almost surely, 2^16407172 is an apocalyptic number.

It is an amenable number.

16407172 is a deficient number, since it is larger than the sum of its proper divisors (12305386).

16407172 is a wasteful number, since it uses less digits than its factorization.

16407172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4101797 (or 4101795 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 16407172 is about 4050.5767490569. The cubic root of 16407172 is about 254.1038490762.

The spelling of 16407172 in words is "sixteen million, four hundred seven thousand, one hundred seventy-two".