13400234 has 8 divisors (see below), whose sum is σ = 20217060. Its totient is φ = 6661216.

The previous prime is 13400227. The next prime is 13400239. The reversal of 13400234 is 43200431.

13400234 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 13359025 + 41209 = 3655^2 + 203^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13400239) 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, 19019 + ... + 19710.

Almost surely, 2^13400234 is an apocalyptic number.

13400234 is a deficient number, since it is larger than the sum of its proper divisors (6816826).

13400234 is a wasteful number, since it uses less digits than its factorization.

13400234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38904.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 13400234 is about 3660.6330053694. The cubic root of 13400234 is about 237.5221563817.

Adding to 13400234 its reverse (43200431), we get a palindrome (56600665).

The spelling of 13400234 in words is "thirteen million, four hundred thousand, two hundred thirty-four".