18230370 has 32 divisors (see below), whose sum is σ = 43962048. Its totient is φ = 4838208.

The previous prime is 18230347. The next prime is 18230383. The reversal of 18230370 is 7303281.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18230370.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5472 + ... + 8148.

It is an arithmetic number, because the mean of its divisors is an integer number (1373814).

Almost surely, 2^18230370 is an apocalyptic number.

18230370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18230370 is an abundant number, since it is smaller than the sum of its proper divisors (25731678).

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

18230370 is a wasteful number, since it uses less digits than its factorization.

18230370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2914.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 18230370 is about 4269.7037367949. The cubic root of 18230370 is about 263.1874407738.

The spelling of 18230370 in words is "eighteen million, two hundred thirty thousand, three hundred seventy".