18797072 has 40 divisors (see below), whose sum is σ = 43437696. Its totient is φ = 7704576.

The previous prime is 18797071. The next prime is 18797081. The reversal of 18797072 is 27079781.

It is not an unprimeable number, because it can be changed into a prime (18797071) 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, 1073 + ... + 6224.

Almost surely, 2^18797072 is an apocalyptic number.

It is an amenable number.

18797072 is an abundant number, since it is smaller than the sum of its proper divisors (24640624).

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

18797072 is a wasteful number, since it uses less digits than its factorization.

18797072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7335 (or 7329 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 41.

The square root of 18797072 is about 4335.5590181659. The cubic root of 18797072 is about 265.8867741299.

The spelling of 18797072 in words is "eighteen million, seven hundred ninety-seven thousand, seventy-two".