16281372 has 24 divisors (see below), whose sum is σ = 38080000. Its totient is φ = 5414256.

The previous prime is 16281361. The next prime is 16281373. The reversal of 16281372 is 27318261.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16281373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4629 + ... + 7347.

Almost surely, 2^16281372 is an apocalyptic number.

16281372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16281372 is an abundant number, since it is smaller than the sum of its proper divisors (21798628).

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

16281372 is a wasteful number, since it uses less digits than its factorization.

16281372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3225 (or 3223 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 16281372 is about 4035.0182155723. The cubic root of 16281372 is about 253.4527453360.

It can be divided in two parts, 16281 and 372, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 16281372 in words is "sixteen million, two hundred eighty-one thousand, three hundred seventy-two".