18492016 has 40 divisors (see below), whose sum is σ = 38390400. Its totient is φ = 8602560.

The previous prime is 18492011. The next prime is 18492017. The reversal of 18492016 is 61029481.

It is a happy number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18492011) 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, 17421 + ... + 18451.

It is an arithmetic number, because the mean of its divisors is an integer number (959760).

Almost surely, 2^18492016 is an apocalyptic number.

18492016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18492016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19195200).

18492016 is an abundant number, since it is smaller than the sum of its proper divisors (19898384).

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

18492016 is a wasteful number, since it uses less digits than its factorization.

18492016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117 (or 1111 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 18492016 is about 4300.2344122152. The cubic root of 18492016 is about 264.4405713614.

The spelling of 18492016 in words is "eighteen million, four hundred ninety-two thousand, sixteen".