18620130 has 16 divisors (see below), whose sum is σ = 44688384. Its totient is φ = 4965360.

The previous prime is 18620123. The next prime is 18620141. The reversal of 18620130 is 3102681.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18620097 and 18620106.

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, 310306 + ... + 310365.

It is an arithmetic number, because the mean of its divisors is an integer number (2793024).

Almost surely, 2^18620130 is an apocalyptic number.

18620130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18620130 is an abundant number, since it is smaller than the sum of its proper divisors (26068254).

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

18620130 is a wasteful number, since it uses less digits than its factorization.

18620130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620681.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 18620130 is about 4315.1048654697. The cubic root of 18620130 is about 265.0498541543.

The spelling of 18620130 in words is "eighteen million, six hundred twenty thousand, one hundred thirty".