18130050 has 36 divisors (see below), whose sum is σ = 48710610. Its totient is φ = 4834560.

The previous prime is 18130039. The next prime is 18130067. The reversal of 18130050 is 5003181.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 17214201 + 915849 = 4149^2 + 957^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 19695 + ... + 20594.

Almost surely, 2^18130050 is an apocalyptic number.

18130050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18130050 is an abundant number, since it is smaller than the sum of its proper divisors (30580560).

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

18130050 is a wasteful number, since it uses less digits than its factorization.

18130050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40307 (or 40299 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 18130050 is about 4257.9396425971. The cubic root of 18130050 is about 262.7037873305.

It can be divided in two parts, 18 and 130050, that multiplied together give a square (2340900 = 1530²).

The spelling of 18130050 in words is "eighteen million, one hundred thirty thousand, fifty".