18230600 has 24 divisors (see below), whose sum is σ = 42386610. Its totient is φ = 7292160.

The previous prime is 18230591. The next prime is 18230621. The reversal of 18230600 is 603281.

It can be written as a sum of positive squares in 3 ways, for example, as 8282884 + 9947716 = 2878^2 + 3154^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45377 + ... + 45776.

Almost surely, 2^18230600 is an apocalyptic number.

18230600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18230600 is an abundant number, since it is smaller than the sum of its proper divisors (24156010).

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

18230600 is a wasteful number, since it uses less digits than its factorization.

18230600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91169 (or 91160 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 18230600 is about 4269.7306706630. The cubic root of 18230600 is about 263.1885475873.

Adding to 18230600 its reverse (603281), we get a palindrome (18833881).

The spelling of 18230600 in words is "eighteen million, two hundred thirty thousand, six hundred".