18522948 has 48 divisors (see below), whose sum is σ = 45904320. Its totient is φ = 5796864.

The previous prime is 18522941. The next prime is 18522953. The reversal of 18522948 is 84922581.

It is a super-2 number, since 2×18522948² = 686199205221408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18522941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30940 + ... + 31532.

It is an arithmetic number, because the mean of its divisors is an integer number (956340).

Almost surely, 2^18522948 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 18522948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22952160).

18522948 is an abundant number, since it is smaller than the sum of its proper divisors (27381372).

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

18522948 is a wasteful number, since it uses less digits than its factorization.

18522948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756 (or 754 counting only the distinct ones).

The product of its digits is 46080, while the sum is 39.

The square root of 18522948 is about 4303.8294575877. The cubic root of 18522948 is about 264.5879344038.

The spelling of 18522948 in words is "eighteen million, five hundred twenty-two thousand, nine hundred forty-eight".