18130270 has 16 divisors (see below), whose sum is σ = 32972688. Its totient is φ = 7176960.

The previous prime is 18130253. The next prime is 18130291. The reversal of 18130270 is 7203181.

It is a congruent number.

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, 8376 + ... + 10315.

It is an arithmetic number, because the mean of its divisors is an integer number (2060793).

Almost surely, 2^18130270 is an apocalyptic number.

18130270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18130270 is a deficient number, since it is larger than the sum of its proper divisors (14842418).

18130270 is a wasteful number, since it uses less digits than its factorization.

18130270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18795.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 18130270 is about 4257.9654766097. The cubic root of 18130270 is about 262.7048499236.

The spelling of 18130270 in words is "eighteen million, one hundred thirty thousand, two hundred seventy".