13931434 has 16 divisors (see below), whose sum is σ = 23185440. Its totient is φ = 6224560.

The previous prime is 13931383. The next prime is 13931443. The reversal of 13931434 is 43413931.

13931434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 4069 + ... + 6664.

It is an arithmetic number, because the mean of its divisors is an integer number (1449090).

Almost surely, 2^13931434 is an apocalyptic number.

13931434 is a deficient number, since it is larger than the sum of its proper divisors (9254006).

13931434 is a wasteful number, since it uses less digits than its factorization.

13931434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10805.

The product of its digits is 3888, while the sum is 28.

The square root of 13931434 is about 3732.4836235408. The cubic root of 13931434 is about 240.6201208658.

It can be divided in two parts, 13931 and 434, that added together give a triangular number (14365 = T₁₆₉).

The spelling of 13931434 in words is "thirteen million, nine hundred thirty-one thousand, four hundred thirty-four".