18007080 has 256 divisors, whose sum is σ = 71124480. Its totient is φ = 3538944.

The previous prime is 18007061. The next prime is 18007111. The reversal of 18007080 is 8070081.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 18007080.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 185592 + ... + 185688.

It is an arithmetic number, because the mean of its divisors is an integer number (277830).

Almost surely, 2^18007080 is an apocalyptic number.

18007080 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 18007080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35562240).

18007080 is an abundant number, since it is smaller than the sum of its proper divisors (53117400).

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

18007080 is a wasteful number, since it uses less digits than its factorization.

18007080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 18007080 is about 4243.4749910893. The cubic root of 18007080 is about 262.1084957484.

The spelling of 18007080 in words is "eighteen million, seven thousand, eighty".