18480415 has 8 divisors (see below), whose sum is σ = 22218768. Its totient is φ = 14756160.

The previous prime is 18480401. The next prime is 18480421. The reversal of 18480415 is 51408481.

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

It is not a de Polignac number, because 18480415 - 2⁵ = 18480383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382 + ... + 6091.

It is an arithmetic number, because the mean of its divisors is an integer number (2777346).

Almost surely, 2^18480415 is an apocalyptic number.

18480415 is a deficient number, since it is larger than the sum of its proper divisors (3738353).

18480415 is an equidigital number, since it uses as much as digits as its factorization.

18480415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7049.

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 18480415 is about 4298.8853206384. The cubic root of 18480415 is about 264.3852607016.

Adding to 18480415 its reverse (51408481), we get a palindrome (69888896).

The spelling of 18480415 in words is "eighteen million, four hundred eighty thousand, four hundred fifteen".