13040942 has 4 divisors (see below), whose sum is σ = 19561416. Its totient is φ = 6520470.

The previous prime is 13040917. The next prime is 13040957. The reversal of 13040942 is 24904031.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3260234 + ... + 3260237.

It is an arithmetic number, because the mean of its divisors is an integer number (4890354).

Almost surely, 2^13040942 is an apocalyptic number.

13040942 is a deficient number, since it is larger than the sum of its proper divisors (6520474).

13040942 is an equidigital number, since it uses as much as digits as its factorization.

13040942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6520473.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 13040942 is about 3611.2244460847. The cubic root of 13040942 is about 235.3800520009.

Adding to 13040942 its reverse (24904031), we get a palindrome (37944973).

The spelling of 13040942 in words is "thirteen million, forty thousand, nine hundred forty-two".