13388434 has 4 divisors (see below), whose sum is σ = 20082654. Its totient is φ = 6694216.

The previous prime is 13388429. The next prime is 13388443. The reversal of 13388434 is 43488331.

It is a happy number.

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., 7371225 + 6017209 = 2715^2 + 2453^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13388434.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3347107 + ... + 3347110.

Almost surely, 2^13388434 is an apocalyptic number.

13388434 is a deficient number, since it is larger than the sum of its proper divisors (6694220).

13388434 is an equidigital number, since it uses as much as digits as its factorization.

13388434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6694219.

The product of its digits is 27648, while the sum is 34.

The square root of 13388434 is about 3659.0209072920. The cubic root of 13388434 is about 237.4524166907.

The spelling of 13388434 in words is "thirteen million, three hundred eighty-eight thousand, four hundred thirty-four".