14445864 has 56 divisors (see below), whose sum is σ = 40626810. Its totient is φ = 4813344.

The previous prime is 14445859. The next prime is 14445883. The reversal of 14445864 is 46854441.

It is a happy number.

14445864 is a `hidden beast` number, since 144 + 458 + 64 = 666.

14445864 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12320100 + 2125764 = 3510^2 + 1458^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 4594 + ... + 7070.

Almost surely, 2^14445864 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 14445864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20313405).

14445864 is an abundant number, since it is smaller than the sum of its proper divisors (26180946).

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

14445864 is an equidigital number, since it uses as much as digits as its factorization.

14445864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2501 (or 2482 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 14445864 is about 3800.7715006298. The cubic root of 14445864 is about 243.5460969331.

The spelling of 14445864 in words is "fourteen million, four hundred forty-five thousand, eight hundred sixty-four".