18462989 has 8 divisors (see below), whose sum is σ = 18833280. Its totient is φ = 18095616.

The previous prime is 18462979. The next prime is 18463001. The reversal of 18462989 is 98926481.

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

It is a cyclic number.

It is not a de Polignac number, because 18462989 - 2²⁴ = 1685773 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18462919) 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, 15437 + ... + 16589.

It is an arithmetic number, because the mean of its divisors is an integer number (2354160).

Almost surely, 2^18462989 is an apocalyptic number.

It is an amenable number.

18462989 is a deficient number, since it is larger than the sum of its proper divisors (370291).

18462989 is a wasteful number, since it uses less digits than its factorization.

18462989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459.

The product of its digits is 248832, while the sum is 47.

The square root of 18462989 is about 4296.8580381483. The cubic root of 18462989 is about 264.3021343862.

The spelling of 18462989 in words is "eighteen million, four hundred sixty-two thousand, nine hundred eighty-nine".