13994424 has 64 divisors (see below), whose sum is σ = 39494400. Its totient is φ = 4590432.

The previous prime is 13994411. The next prime is 13994447. The reversal of 13994424 is 42449931.

13994424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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, 13989 + ... + 14955.

It is an arithmetic number, because the mean of its divisors is an integer number (617100).

Almost surely, 2^13994424 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 13994424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19747200).

13994424 is an abundant number, since it is smaller than the sum of its proper divisors (25499976).

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

13994424 is a wasteful number, since it uses less digits than its factorization.

13994424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049 (or 1039 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 13994424 is about 3740.9121882236. The cubic root of 13994424 is about 240.9822246608.

The spelling of 13994424 in words is "thirteen million, nine hundred ninety-four thousand, four hundred twenty-four".