18472080 has 80 divisors (see below), whose sum is σ = 62478144. Its totient is φ = 4477440.

The previous prime is 18472061. The next prime is 18472087. The reversal of 18472080 is 8027481.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (18472087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 859 + ... + 6138.

Almost surely, 2^18472080 is an apocalyptic number.

18472080 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 18472080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31239072).

18472080 is an abundant number, since it is smaller than the sum of its proper divisors (44006064).

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

18472080 is a wasteful number, since it uses less digits than its factorization.

18472080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7024 (or 7018 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 18472080 is about 4297.9157739537. The cubic root of 18472080 is about 264.3455072198.

The spelling of 18472080 in words is "eighteen million, four hundred seventy-two thousand, eighty".