18608982 has 64 divisors (see below), whose sum is σ = 45826560. Its totient is φ = 4916736.

The previous prime is 18608969. The next prime is 18608983. The reversal of 18608982 is 28980681.

It is a super-2 number, since 2×18608982² = 692588422152648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18608983) 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, 47644 + ... + 48032.

It is an arithmetic number, because the mean of its divisors is an integer number (716040).

Almost surely, 2^18608982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18608982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22913280).

18608982 is an abundant number, since it is smaller than the sum of its proper divisors (27217578).

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

18608982 is a wasteful number, since it uses less digits than its factorization.

18608982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485.

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

The square root of 18608982 is about 4313.8129305755. The cubic root of 18608982 is about 264.9969478704.

The spelling of 18608982 in words is "eighteen million, six hundred eight thousand, nine hundred eighty-two".