18099760 has 40 divisors (see below), whose sum is σ = 48095136. Its totient is φ = 6205440.

The previous prime is 18099751. The next prime is 18099787. The reversal of 18099760 is 6799081.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 15601 + ... + 16720.

Almost surely, 2^18099760 is an apocalyptic number.

18099760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18099760 is an abundant number, since it is smaller than the sum of its proper divisors (29995376).

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

18099760 is a wasteful number, since it uses less digits than its factorization.

18099760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32341 (or 32335 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 18099760 is about 4254.3812711133. The cubic root of 18099760 is about 262.5574054347.

The spelling of 18099760 in words is "eighteen million, ninety-nine thousand, seven hundred sixty".