18548130 has 16 divisors (see below), whose sum is σ = 44515584. Its totient is φ = 4946160.

The previous prime is 18548119. The next prime is 18548183. The reversal of 18548130 is 3184581.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 618271 = 18548130 / (1 + 8 + 5 + 4 + 8 + 1 + 3 + 0).

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, 309106 + ... + 309165.

It is an arithmetic number, because the mean of its divisors is an integer number (2782224).

Almost surely, 2^18548130 is an apocalyptic number.

18548130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18548130 is an abundant number, since it is smaller than the sum of its proper divisors (25967454).

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

18548130 is a wasteful number, since it uses less digits than its factorization.

18548130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618281.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 18548130 is about 4306.7539980825. The cubic root of 18548130 is about 264.7077827896.

The spelling of 18548130 in words is "eighteen million, five hundred forty-eight thousand, one hundred thirty".