18195480 has 48 divisors (see below), whose sum is σ = 59136480. Its totient is φ = 4852032.

The previous prime is 18195467. The next prime is 18195487. The reversal of 18195480 is 8459181.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18195487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24912 + ... + 25631.

It is an arithmetic number, because the mean of its divisors is an integer number (1232010).

Almost surely, 2^18195480 is an apocalyptic number.

18195480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18195480 is an abundant number, since it is smaller than the sum of its proper divisors (40941000).

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

18195480 is a wasteful number, since it uses less digits than its factorization.

18195480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50560 (or 50553 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 18195480 is about 4265.6160164741. The cubic root of 18195480 is about 263.0194340528.

The spelling of 18195480 in words is "eighteen million, one hundred ninety-five thousand, four hundred eighty".