13431970 has 8 divisors (see below), whose sum is σ = 24177564. Its totient is φ = 5372784.

The previous prime is 13431967. The next prime is 13431991. The reversal of 13431970 is 7913431.

13431970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13082689 + 349281 = 3617^2 + 591^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671589 + ... + 671608.

Almost surely, 2^13431970 is an apocalyptic number.

13431970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13431970 is a deficient number, since it is larger than the sum of its proper divisors (10745594).

13431970 is a wasteful number, since it uses less digits than its factorization.

13431970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343204.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 13431970 is about 3664.9652112946. The cubic root of 13431970 is about 237.7095177910.

The spelling of 13431970 in words is "thirteen million, four hundred thirty-one thousand, nine hundred seventy".