18630674 has 12 divisors (see below), whose sum is σ = 29687514. Its totient is φ = 8767104.

The previous prime is 18630631. The next prime is 18630679. The reversal of 18630674 is 47603681.

It can be written as a sum of positive squares in 3 ways, for example, as 18619225 + 11449 = 4315^2 + 107^2 .

It is a super-3 number, since 3×18630674³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (18630679) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15539 + ... + 16694.

Almost surely, 2^18630674 is an apocalyptic number.

18630674 is a deficient number, since it is larger than the sum of its proper divisors (11056840).

18630674 is a wasteful number, since it uses less digits than its factorization.

18630674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32269 (or 32252 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 18630674 is about 4316.3264473392. The cubic root of 18630674 is about 265.0998745411.

The spelling of 18630674 in words is "eighteen million, six hundred thirty thousand, six hundred seventy-four".