18506080 has 24 divisors (see below), whose sum is σ = 43720992. Its totient is φ = 7402368.

The previous prime is 18506077. The next prime is 18506083. The reversal of 18506080 is 8060581.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18506077) and next prime (18506083).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18506083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57672 + ... + 57991.

It is an arithmetic number, because the mean of its divisors is an integer number (1821708).

Almost surely, 2^18506080 is an apocalyptic number.

18506080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18506080 is an abundant number, since it is smaller than the sum of its proper divisors (25214912).

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

18506080 is a wasteful number, since it uses less digits than its factorization.

18506080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115678 (or 115670 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 18506080 is about 4301.8693611034. The cubic root of 18506080 is about 264.5075939753.

The spelling of 18506080 in words is "eighteen million, five hundred six thousand, eighty".