18495274 has 16 divisors (see below), whose sum is σ = 31940928. Its totient is φ = 7867872.

The previous prime is 18495263. The next prime is 18495277. The reversal of 18495274 is 47259481.

It is not an unprimeable number, because it can be changed into a prime (18495277) 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, 2904 + ... + 6739.

It is an arithmetic number, because the mean of its divisors is an integer number (1996308).

Almost surely, 2^18495274 is an apocalyptic number.

18495274 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18495274 is a deficient number, since it is larger than the sum of its proper divisors (13445654).

18495274 is a wasteful number, since it uses less digits than its factorization.

18495274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9789.

The product of its digits is 80640, while the sum is 40.

The square root of 18495274 is about 4300.6132120896. The cubic root of 18495274 is about 264.4561005279.

It can be divided in two parts, 18495 and 274, that added together give a square (18769 = 137²).

The spelling of 18495274 in words is "eighteen million, four hundred ninety-five thousand, two hundred seventy-four".