18492894 has 96 divisors (see below), whose sum is σ = 49658400. Its totient is φ = 5080320.

The previous prime is 18492883. The next prime is 18492899. The reversal of 18492894 is 49829481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18492899) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76614 + ... + 76854.

It is an arithmetic number, because the mean of its divisors is an integer number (517275).

Almost surely, 2^18492894 is an apocalyptic number.

18492894 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18492894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24829200).

18492894 is an abundant number, since it is smaller than the sum of its proper divisors (31165506).

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

18492894 is a wasteful number, since it uses less digits than its factorization.

18492894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 282 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 18492894 is about 4300.3364984615. The cubic root of 18492894 is about 264.4447565035. Note that the first 3 decimals are identical.

The spelling of 18492894 in words is "eighteen million, four hundred ninety-two thousand, eight hundred ninety-four".