13922440 has 64 divisors (see below), whose sum is σ = 37699200. Its totient is φ = 4520448.

The previous prime is 13922423. The next prime is 13922453. The reversal of 13922440 is 4422931.

13922440 is nontrivially palindromic in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4012 + ... + 6628.

It is an arithmetic number, because the mean of its divisors is an integer number (589050).

Almost surely, 2^13922440 is an apocalyptic number.

13922440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13922440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18849600).

13922440 is an abundant number, since it is smaller than the sum of its proper divisors (23776760).

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

13922440 is a wasteful number, since it uses less digits than its factorization.

13922440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2654 (or 2650 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 13922440 is about 3731.2786012304. The cubic root of 13922440 is about 240.5683290390.

The spelling of 13922440 in words is "thirteen million, nine hundred twenty-two thousand, four hundred forty".