18527242 has 24 divisors (see below), whose sum is σ = 29846016. Its totient is φ = 8622504.

The previous prime is 18527231. The next prime is 18527279. The reversal of 18527242 is 24272581.

It is a happy number.

It is a super-2 number, since 2×18527242² = 686517392253128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48183 + ... + 48565.

It is an arithmetic number, because the mean of its divisors is an integer number (1243584).

Almost surely, 2^18527242 is an apocalyptic number.

18527242 is a deficient number, since it is larger than the sum of its proper divisors (11318774).

18527242 is a wasteful number, since it uses less digits than its factorization.

18527242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490 (or 471 counting only the distinct ones).

The product of its digits is 8960, while the sum is 31.

The square root of 18527242 is about 4304.3282867365. The cubic root of 18527242 is about 264.6083784643.

It can be divided in two parts, 18527 and 242, that added together give a square (18769 = 137²).

The spelling of 18527242 in words is "eighteen million, five hundred twenty-seven thousand, two hundred forty-two".