18880299 has 12 divisors (see below), whose sum is σ = 27375712. Its totient is φ = 12538800.

The previous prime is 18880297. The next prime is 18880307. The reversal of 18880299 is 99208881.

It is not a de Polignac number, because 18880299 - 2¹ = 18880297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18880297) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1432 + ... + 6309.

Almost surely, 2^18880299 is an apocalyptic number.

18880299 is a deficient number, since it is larger than the sum of its proper divisors (8495413).

18880299 is a wasteful number, since it uses less digits than its factorization.

18880299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8018 (or 8015 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The square root of 18880299 is about 4345.1466028202. The cubic root of 18880299 is about 266.2786149236.

The spelling of 18880299 in words is "eighteen million, eight hundred eighty thousand, two hundred ninety-nine".