18880790 has 8 divisors (see below), whose sum is σ = 33985440. Its totient is φ = 7552312.

The previous prime is 18880789. The next prime is 18880819. The reversal of 18880790 is 9708881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 944030 + ... + 944049.

It is an arithmetic number, because the mean of its divisors is an integer number (4248180).

Almost surely, 2^18880790 is an apocalyptic number.

18880790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18880790 is a deficient number, since it is larger than the sum of its proper divisors (15104650).

18880790 is a wasteful number, since it uses less digits than its factorization.

18880790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888086.

The product of its (nonzero) digits is 32256, while the sum is 41.

The square root of 18880790 is about 4345.2031022727. The cubic root of 18880790 is about 266.2809231792.

The spelling of 18880790 in words is "eighteen million, eight hundred eighty thousand, seven hundred ninety".