16866492 has 24 divisors (see below), whose sum is σ = 40271616. Its totient is φ = 5491248.

The previous prime is 16866491. The next prime is 16866497. The reversal of 16866492 is 29466861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16866491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15828 + ... + 16859.

It is an arithmetic number, because the mean of its divisors is an integer number (1677984).

Almost surely, 2^16866492 is an apocalyptic number.

16866492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16866492 is an abundant number, since it is smaller than the sum of its proper divisors (23405124).

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

16866492 is a wasteful number, since it uses less digits than its factorization.

16866492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32737 (or 32735 counting only the distinct ones).

The product of its digits is 124416, while the sum is 42.

The square root of 16866492 is about 4106.8834899471. The cubic root of 16866492 is about 256.4532781614.

The spelling of 16866492 in words is "sixteen million, eight hundred sixty-six thousand, four hundred ninety-two".