18147080 has 32 divisors (see below), whose sum is σ = 46664640. Its totient is φ = 6221760.

The previous prime is 18147053. The next prime is 18147089. The reversal of 18147080 is 8074181.

It is not an unprimeable number, because it can be changed into a prime (18147089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32126 + ... + 32685.

It is an arithmetic number, because the mean of its divisors is an integer number (1458270).

Almost surely, 2^18147080 is an apocalyptic number.

18147080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18147080 is an abundant number, since it is smaller than the sum of its proper divisors (28517560).

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

18147080 is a wasteful number, since it uses less digits than its factorization.

18147080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64829 (or 64825 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 18147080 is about 4259.9389666989. The cubic root of 18147080 is about 262.7860162898.

The spelling of 18147080 in words is "eighteen million, one hundred forty-seven thousand, eighty".