18245964 has 96 divisors (see below), whose sum is σ = 50512896. Its totient is φ = 5063680.

The previous prime is 18245957. The next prime is 18245987. The reversal of 18245964 is 46954281.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105382 + ... + 105554.

It is an arithmetic number, because the mean of its divisors is an integer number (526176).

Almost surely, 2^18245964 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18245964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25256448).

18245964 is an abundant number, since it is smaller than the sum of its proper divisors (32266932).

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

18245964 is a wasteful number, since it uses less digits than its factorization.

18245964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255 (or 253 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 18245964 is about 4271.5294684691. The cubic root of 18245964 is about 263.2624616556.

The spelling of 18245964 in words is "eighteen million, two hundred forty-five thousand, nine hundred sixty-four".