18496374 has 96 divisors (see below), whose sum is σ = 45061920. Its totient is φ = 5031936.

The previous prime is 18496363. The next prime is 18496381. The reversal of 18496374 is 47369481.

It is a super-2 number, since 2×18496374² = 684231702295752, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 499884 + ... + 499920.

It is an arithmetic number, because the mean of its divisors is an integer number (469395).

Almost surely, 2^18496374 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18496374, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22530960).

18496374 is an abundant number, since it is smaller than the sum of its proper divisors (26565546).

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

18496374 is a wasteful number, since it uses less digits than its factorization.

18496374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 101 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 18496374 is about 4300.7410989270. The cubic root of 18496374 is about 264.4613432356.

The spelling of 18496374 in words is "eighteen million, four hundred ninety-six thousand, three hundred seventy-four".