16191372 has 12 divisors (see below), whose sum is σ = 37779896. Its totient is φ = 5397120.

The previous prime is 16191353. The next prime is 16191407. The reversal of 16191372 is 27319161.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 674629 + ... + 674652.

Almost surely, 2^16191372 is an apocalyptic number.

16191372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16191372 is an abundant number, since it is smaller than the sum of its proper divisors (21588524).

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

16191372 is a wasteful number, since it uses less digits than its factorization.

16191372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349288 (or 1349286 counting only the distinct ones).

The product of its digits is 2268, while the sum is 30.

The square root of 16191372 is about 4023.8503948333. The cubic root of 16191372 is about 252.9848710144.

The spelling of 16191372 in words is "sixteen million, one hundred ninety-one thousand, three hundred seventy-two".