18494576 has 40 divisors (see below), whose sum is σ = 38702880. Its totient is φ = 8535296.

The previous prime is 18494563. The next prime is 18494579. The reversal of 18494576 is 67549481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18494579) 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, 9806 + ... + 11538.

It is an arithmetic number, because the mean of its divisors is an integer number (967572).

Almost surely, 2^18494576 is an apocalyptic number.

18494576 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 18494576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19351440).

18494576 is an abundant number, since it is smaller than the sum of its proper divisors (20208304).

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

18494576 is a wasteful number, since it uses less digits than its factorization.

18494576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1793 (or 1787 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 18494576 is about 4300.5320601061. The cubic root of 18494576 is about 264.4527736838.

The spelling of 18494576 in words is "eighteen million, four hundred ninety-four thousand, five hundred seventy-six".