18058950 has 240 divisors, whose sum is σ = 63016800. Its totient is φ = 3810240.

The previous prime is 18058927. The next prime is 18058961. The reversal of 18058950 is 5985081.

It is a super-2 number, since 2×18058950² = 652251350205000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1389144 + ... + 1389156.

It is an arithmetic number, because the mean of its divisors is an integer number (262570).

Almost surely, 2^18058950 is an apocalyptic number.

18058950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18058950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31508400).

18058950 is an abundant number, since it is smaller than the sum of its proper divisors (44957850).

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

18058950 is a wasteful number, since it uses less digits than its factorization.

18058950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The square root of 18058950 is about 4249.5823324181. The cubic root of 18058950 is about 262.3599252669.

The spelling of 18058950 in words is "eighteen million, fifty-eight thousand, nine hundred fifty".