18062900 has 18 divisors (see below), whose sum is σ = 39196710. Its totient is φ = 7225120.

The previous prime is 18062867. The next prime is 18062921. The reversal of 18062900 is 926081.

It can be written as a sum of positive squares in 3 ways, for example, as 6421156 + 11641744 = 2534^2 + 3412^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18062900.

It is a congruent number.

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, 90215 + ... + 90414.

It is an arithmetic number, because the mean of its divisors is an integer number (2177595).

Almost surely, 2^18062900 is an apocalyptic number.

18062900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18062900 is an abundant number, since it is smaller than the sum of its proper divisors (21133810).

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

18062900 is a wasteful number, since it uses less digits than its factorization.

18062900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180643 (or 180636 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 18062900 is about 4250.0470585630. The cubic root of 18062900 is about 262.3790523693.

Adding to 18062900 its reverse (926081), we get a palindrome (18988981).

The spelling of 18062900 in words is "eighteen million, sixty-two thousand, nine hundred".