18749082 has 32 divisors (see below), whose sum is σ = 41586624. Its totient is φ = 5587200.

The previous prime is 18749057. The next prime is 18749123. The reversal of 18749082 is 28094781.

It is a self number, because there is not a number n which added to its sum of digits gives 18749082.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1698 + ... + 6354.

It is an arithmetic number, because the mean of its divisors is an integer number (1299582).

Almost surely, 2^18749082 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18749082, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20793312).

18749082 is an abundant number, since it is smaller than the sum of its proper divisors (22837542).

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

18749082 is a wasteful number, since it uses less digits than its factorization.

18749082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4734.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 18749082 is about 4330.0210161153. The cubic root of 18749082 is about 265.6603065779.

The spelling of 18749082 in words is "eighteen million, seven hundred forty-nine thousand, eighty-two".