18980682 has 16 divisors (see below), whose sum is σ = 43384512. Its totient is φ = 5423040.

The previous prime is 18980659. The next prime is 18980683. The reversal of 18980682 is 28608981.

It is a super-3 number, since 3×18980682³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 451921 = 18980682 / (1 + 8 + 9 + 8 + 0 + 6 + 8 + 2).

It is not an unprimeable number, because it can be changed into a prime (18980683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225919 + ... + 226002.

It is an arithmetic number, because the mean of its divisors is an integer number (2711532).

Almost surely, 2^18980682 is an apocalyptic number.

18980682 is an abundant number, since it is smaller than the sum of its proper divisors (24403830).

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

18980682 is a wasteful number, since it uses less digits than its factorization.

18980682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451933.

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 18980682 is about 4356.6824534271. The cubic root of 18980682 is about 266.7496987963.

It can be divided in two parts, 18 and 980682, that added together give a triangular number (980700 = T₁₄₀₀).

The spelling of 18980682 in words is "eighteen million, nine hundred eighty thousand, six hundred eighty-two".