18674744 has 32 divisors (see below), whose sum is σ = 38502000. Its totient is φ = 8421120.

The previous prime is 18674737. The next prime is 18674749. The reversal of 18674744 is 44747681.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18674749) 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, 11282 + ... + 12830.

Almost surely, 2^18674744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18674744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19251000).

18674744 is an abundant number, since it is smaller than the sum of its proper divisors (19827256).

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

18674744 is a wasteful number, since it uses less digits than its factorization.

18674744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703 (or 1699 counting only the distinct ones).

The product of its digits is 150528, while the sum is 41.

The square root of 18674744 is about 4321.4284675325. The cubic root of 18674744 is about 265.3087371177.

The spelling of 18674744 in words is "eighteen million, six hundred seventy-four thousand, seven hundred forty-four".