18480023 has 8 divisors (see below), whose sum is σ = 18870000. Its totient is φ = 18093888.

The previous prime is 18480001. The next prime is 18480029. The reversal of 18480023 is 32008481.

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 18480023 - 2⁶ = 18479959 is a prime.

It is a super-2 number, since 2×18480023² = 683022500161058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18479974 and 18480001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18480029) 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, 10028 + ... + 11726.

It is an arithmetic number, because the mean of its divisors is an integer number (2358750).

Almost surely, 2^18480023 is an apocalyptic number.

18480023 is a deficient number, since it is larger than the sum of its proper divisors (389977).

18480023 is a wasteful number, since it uses less digits than its factorization.

18480023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 18480023 is about 4298.8397271822. The cubic root of 18480023 is about 264.3833913396.

The spelling of 18480023 in words is "eighteen million, four hundred eighty thousand, twenty-three".