18480693 has 36 divisors (see below), whose sum is σ = 31536960. Its totient is φ = 9591120.

The previous prime is 18480691. The next prime is 18480713. The reversal of 18480693 is 39608481.

It is not a de Polignac number, because 18480693 - 2¹ = 18480691 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18480691) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17268 + ... + 18306.

Almost surely, 2^18480693 is an apocalyptic number.

It is an amenable number.

18480693 is a deficient number, since it is larger than the sum of its proper divisors (13056267).

18480693 is a wasteful number, since it uses less digits than its factorization.

18480693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078 (or 1060 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 18480693 is about 4298.9176544800. The cubic root of 18480693 is about 264.3865864066.

Multiplying 18480693 by its sum of digits (39), we get a palindrome (720747027).

The spelling of 18480693 in words is "eighteen million, four hundred eighty thousand, six hundred ninety-three".