18732982 has 8 divisors (see below), whose sum is σ = 28784952. Its totient is φ = 9138000.

The previous prime is 18732977. The next prime is 18732983. The reversal of 18732982 is 28923781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×18732982² = 701849229224648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18732983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114144 + ... + 114307.

It is an arithmetic number, because the mean of its divisors is an integer number (3598119).

Almost surely, 2^18732982 is an apocalyptic number.

18732982 is a deficient number, since it is larger than the sum of its proper divisors (10051970).

18732982 is a wasteful number, since it uses less digits than its factorization.

18732982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228494.

The product of its digits is 48384, while the sum is 40.

The square root of 18732982 is about 4328.1615034562. The cubic root of 18732982 is about 265.5842431954.

The spelling of 18732982 in words is "eighteen million, seven hundred thirty-two thousand, nine hundred eighty-two".