13931430 has 16 divisors (see below), whose sum is σ = 33435504. Its totient is φ = 3715040.

The previous prime is 13931383. The next prime is 13931443. The reversal of 13931430 is 3413931.

13931430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13931430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232161 + ... + 232220.

It is an arithmetic number, because the mean of its divisors is an integer number (2089719).

Almost surely, 2^13931430 is an apocalyptic number.

13931430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13931430 is an abundant number, since it is smaller than the sum of its proper divisors (19504074).

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

13931430 is a wasteful number, since it uses less digits than its factorization.

13931430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464391.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 13931430 is about 3732.4830877045. The cubic root of 13931430 is about 240.6200978368.

The spelling of 13931430 in words is "thirteen million, nine hundred thirty-one thousand, four hundred thirty".