18141800 has 24 divisors (see below), whose sum is σ = 42180150. Its totient is φ = 7256640.

The previous prime is 18141787. The next prime is 18141841. The reversal of 18141800 is 814181.

It can be written as a sum of positive squares in 3 ways, for example, as 16467364 + 1674436 = 4058^2 + 1294^2 .

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, 45155 + ... + 45554.

Almost surely, 2^18141800 is an apocalyptic number.

18141800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18141800 is an abundant number, since it is smaller than the sum of its proper divisors (24038350).

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

18141800 is a wasteful number, since it uses less digits than its factorization.

18141800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90725 (or 90716 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 18141800 is about 4259.3191944253. The cubic root of 18141800 is about 262.7605274370.

Adding to 18141800 its reverse (814181), we get a palindrome (18955981).

The spelling of 18141800 in words is "eighteen million, one hundred forty-one thousand, eight hundred".