13815434 has 8 divisors (see below), whose sum is σ = 20843460. Its totient is φ = 6867616.

The previous prime is 13815421. The next prime is 13815437. The reversal of 13815434 is 43451831.

13815434 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 13653025 + 162409 = 3695^2 + 403^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 13815397 and 13815406.

It is not an unprimeable number, because it can be changed into a prime (13815437) 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, 19619 + ... + 20310.

Almost surely, 2^13815434 is an apocalyptic number.

13815434 is a deficient number, since it is larger than the sum of its proper divisors (7028026).

13815434 is a wasteful number, since it uses less digits than its factorization.

13815434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40104.

The product of its digits is 5760, while the sum is 29.

The square root of 13815434 is about 3716.9118902659. The cubic root of 13815434 is about 239.9504179982.

The spelling of 13815434 in words is "thirteen million, eight hundred fifteen thousand, four hundred thirty-four".