18077248 has 28 divisors (see below), whose sum is σ = 40997632. Its totient is φ = 7747200.

The previous prime is 18077233. The next prime is 18077291. The reversal of 18077248 is 84277081.

It is a tau number, because it is divible by the number of its divisors (28).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19728 + ... + 20623.

Almost surely, 2^18077248 is an apocalyptic number.

It is an amenable number.

18077248 is an abundant number, since it is smaller than the sum of its proper divisors (22920384).

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

18077248 is an equidigital number, since it uses as much as digits as its factorization.

18077248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40370 (or 40360 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 18077248 is about 4251.7347047999. The cubic root of 18077248 is about 262.4485063014.

The spelling of 18077248 in words is "eighteen million, seventy-seven thousand, two hundred forty-eight".