16890492 has 24 divisors (see below), whose sum is σ = 39725056. Its totient is φ = 5585328.

The previous prime is 16890481. The next prime is 16890493. The reversal of 16890492 is 29409861.

It is a self number, because there is not a number n which added to its sum of digits gives 16890492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16890493) 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, 4018 + ... + 7065.

Almost surely, 2^16890492 is an apocalyptic number.

16890492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16890492 is an abundant number, since it is smaller than the sum of its proper divisors (22834564).

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

16890492 is a wasteful number, since it uses less digits than its factorization.

16890492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11217 (or 11215 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 16890492 is about 4109.8043749064. The cubic root of 16890492 is about 256.5748596900.

The spelling of 16890492 in words is "sixteen million, eight hundred ninety thousand, four hundred ninety-two".