18710230 has 72 divisors (see below), whose sum is σ = 43226064. Its totient is φ = 5707680.

The previous prime is 18710221. The next prime is 18710243. The reversal of 18710230 is 3201781.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 398067 + ... + 398113.

It is an arithmetic number, because the mean of its divisors is an integer number (600362).

Almost surely, 2^18710230 is an apocalyptic number.

18710230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18710230 is an abundant number, since it is smaller than the sum of its proper divisors (24515834).

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

18710230 is a wasteful number, since it uses less digits than its factorization.

18710230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 72 counting only the distinct ones).

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

The square root of 18710230 is about 4325.5323371812. The cubic root of 18710230 is about 265.4766785326.

The spelling of 18710230 in words is "eighteen million, seven hundred ten thousand, two hundred thirty".