13430938 has 4 divisors (see below), whose sum is σ = 20146410. Its totient is φ = 6715468.

The previous prime is 13430927. The next prime is 13430939. The reversal of 13430938 is 83903431.

13430938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12271009 + 1159929 = 3503^2 + 1077^2 .

It is not an unprimeable number, because it can be changed into a prime (13430939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3357733 + ... + 3357736.

Almost surely, 2^13430938 is an apocalyptic number.

13430938 is a deficient number, since it is larger than the sum of its proper divisors (6715472).

13430938 is an equidigital number, since it uses as much as digits as its factorization.

13430938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6715471.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 13430938 is about 3664.8244159850. The cubic root of 13430938 is about 237.7034297660.

The spelling of 13430938 in words is "thirteen million, four hundred thirty thousand, nine hundred thirty-eight".