13040234 has 4 divisors (see below), whose sum is σ = 19560354. Its totient is φ = 6520116.

The previous prime is 13040231. The next prime is 13040257. The reversal of 13040234 is 43204031.

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., 11539609 + 1500625 = 3397^2 + 1225^2 .

It is not an unprimeable number, because it can be changed into a prime (13040231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3260057 + ... + 3260060.

Almost surely, 2^13040234 is an apocalyptic number.

13040234 is a deficient number, since it is larger than the sum of its proper divisors (6520120).

13040234 is an equidigital number, since it uses as much as digits as its factorization.

13040234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6520119.

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

The square root of 13040234 is about 3611.1264170616. The cubic root of 13040234 is about 235.3757922858.

Adding to 13040234 its reverse (43204031), we get a palindrome (56244265).

The spelling of 13040234 in words is "thirteen million, forty thousand, two hundred thirty-four".