16372972 has 96 divisors (see below), whose sum is σ = 39191040. Its totient is φ = 5790720.

The previous prime is 16372963. The next prime is 16372973. The reversal of 16372972 is 27927361.

It is a super-2 number, since 2×16372972² = 536148424225568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16372973) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 277479 + ... + 277537.

It is an arithmetic number, because the mean of its divisors is an integer number (408240).

Almost surely, 2^16372972 is an apocalyptic number.

16372972 is the 3304-th pentagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16372972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19595520).

16372972 is an abundant number, since it is smaller than the sum of its proper divisors (22818068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16372972 is a wasteful number, since it uses less digits than its factorization.

16372972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 149 counting only the distinct ones).

The product of its digits is 31752, while the sum is 37.

The square root of 16372972 is about 4046.3529257839. The cubic root of 16372972 is about 253.9271703072.

The spelling of 16372972 in words is "sixteen million, three hundred seventy-two thousand, nine hundred seventy-two".