16372172 has 6 divisors (see below), whose sum is σ = 28651308. Its totient is φ = 8186084.

The previous prime is 16372171. The next prime is 16372183. The reversal of 16372172 is 27127361.

It is not an unprimeable number, because it can be changed into a prime (16372171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2046518 + ... + 2046525.

It is an arithmetic number, because the mean of its divisors is an integer number (4775218).

Almost surely, 2^16372172 is an apocalyptic number.

It is an amenable number.

16372172 is a deficient number, since it is larger than the sum of its proper divisors (12279136).

16372172 is a wasteful number, since it uses less digits than its factorization.

16372172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4093047 (or 4093045 counting only the distinct ones).

The product of its digits is 3528, while the sum is 29.

The square root of 16372172 is about 4046.2540701246. The cubic root of 16372172 is about 253.9230345269.

The spelling of 16372172 in words is "sixteen million, three hundred seventy-two thousand, one hundred seventy-two".