18748080 has 120 divisors (see below), whose sum is σ = 67839408. Its totient is φ = 4612608.

The previous prime is 18748073. The next prime is 18748091. The reversal of 18748080 is 8084781.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8359 + ... + 10361.

Almost surely, 2^18748080 is an apocalyptic number.

18748080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18748080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33919704).

18748080 is an abundant number, since it is smaller than the sum of its proper divisors (49091328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18748080 is a wasteful number, since it uses less digits than its factorization.

18748080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035 (or 2026 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 18748080 is about 4329.9053107429. The cubic root of 18748080 is about 265.6555739663.

The spelling of 18748080 in words is "eighteen million, seven hundred forty-eight thousand, eighty".