13431764 has 12 divisors (see below), whose sum is σ = 24079188. Its totient is φ = 6552000.

The previous prime is 13431757. The next prime is 13431767. The reversal of 13431764 is 46713431.

It can be written as a sum of positive squares in 2 ways, for example, as 6980164 + 6451600 = 2642^2 + 2540^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13431767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40787 + ... + 41114.

It is an arithmetic number, because the mean of its divisors is an integer number (2006599).

Almost surely, 2^13431764 is an apocalyptic number.

It is an amenable number.

13431764 is a deficient number, since it is larger than the sum of its proper divisors (10647424).

13431764 is a wasteful number, since it uses less digits than its factorization.

13431764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81946 (or 81944 counting only the distinct ones).

The product of its digits is 6048, while the sum is 29.

The square root of 13431764 is about 3664.9371072366. The cubic root of 13431764 is about 237.7083025706.

The spelling of 13431764 in words is "thirteen million, four hundred thirty-one thousand, seven hundred sixty-four".