18968274 has 48 divisors (see below), whose sum is σ = 44745792. Its totient is φ = 5772384.

The previous prime is 18968231. The next prime is 18968317. The reversal of 18968274 is 47286981.

It is an interprime number because it is at equal distance from previous prime (18968231) and next prime (18968317).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23709 + ... + 24495.

It is an arithmetic number, because the mean of its divisors is an integer number (932204).

Almost surely, 2^18968274 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18968274, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22372896).

18968274 is an abundant number, since it is smaller than the sum of its proper divisors (25777518).

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

18968274 is a wasteful number, since it uses less digits than its factorization.

18968274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911 (or 908 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 18968274 is about 4355.2582013010. The cubic root of 18968274 is about 266.6915598289.

The spelling of 18968274 in words is "eighteen million, nine hundred sixty-eight thousand, two hundred seventy-four".