16971492 has 12 divisors (see below), whose sum is σ = 39600176. Its totient is φ = 5657160.

The previous prime is 16971469. The next prime is 16971511. The reversal of 16971492 is 29417961.

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

It is a self number, because there is not a number n which added to its sum of digits gives 16971492.

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, 707134 + ... + 707157.

Almost surely, 2^16971492 is an apocalyptic number.

16971492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16971492 is an abundant number, since it is smaller than the sum of its proper divisors (22628684).

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

16971492 is a wasteful number, since it uses less digits than its factorization.

16971492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414298 (or 1414296 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 16971492 is about 4119.6470722624. The cubic root of 16971492 is about 256.9843490497.

The spelling of 16971492 in words is "sixteen million, nine hundred seventy-one thousand, four hundred ninety-two".