18058680 has 128 divisors (see below), whose sum is σ = 62899200. Its totient is φ = 4599936.

The previous prime is 18058673. The next prime is 18058687. The reversal of 18058680 is 8685081.

It is an interprime number because it is at equal distance from previous prime (18058673) and next prime (18058687).

It is a super-2 number, since 2×18058680² = 652231846684800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18058687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24477 + ... + 25203.

It is an arithmetic number, because the mean of its divisors is an integer number (491400).

Almost surely, 2^18058680 is an apocalyptic number.

18058680 is a gapful number since it is divisible by the number (10) 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 18058680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31449600).

18058680 is an abundant number, since it is smaller than the sum of its proper divisors (44840520).

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

18058680 is a wasteful number, since it uses less digits than its factorization.

18058680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770 (or 760 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 18058680 is about 4249.5505644715. The cubic root of 18058680 is about 262.3586177429.

The spelling of 18058680 in words is "eighteen million, fifty-eight thousand, six hundred eighty".