18058968 has 96 divisors (see below), whose sum is σ = 52852800. Its totient is φ = 5552064.

The previous prime is 18058961. The next prime is 18058991. The reversal of 18058968 is 86985081.

18058968 is a `hidden beast` number, since 1 + 8 + 0 + 589 + 68 = 666.

It is a super-2 number, since 2×18058968² = 652252650450048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18058961) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58671 + ... + 58977.

It is an arithmetic number, because the mean of its divisors is an integer number (550550).

Almost surely, 2^18058968 is an apocalyptic number.

18058968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18058968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26426400).

18058968 is an abundant number, since it is smaller than the sum of its proper divisors (34793832).

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

18058968 is a wasteful number, since it uses less digits than its factorization.

18058968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The square root of 18058968 is about 4249.5844502728. The cubic root of 18058968 is about 262.3600124347.

The spelling of 18058968 in words is "eighteen million, fifty-eight thousand, nine hundred sixty-eight".