13040735 has 4 divisors (see below), whose sum is σ = 15648888. Its totient is φ = 10432584.

The previous prime is 13040693. The next prime is 13040743. The reversal of 13040735 is 53704031.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13040735 - 2¹⁰ = 13039711 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13040735.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1304069 + ... + 1304078.

It is an arithmetic number, because the mean of its divisors is an integer number (3912222).

Almost surely, 2^13040735 is an apocalyptic number.

13040735 is a deficient number, since it is larger than the sum of its proper divisors (2608153).

13040735 is an equidigital number, since it uses as much as digits as its factorization.

13040735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2608152.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 13040735 is about 3611.1957853321. The cubic root of 13040735 is about 235.3788065916.

Adding to 13040735 its reverse (53704031), we get a palindrome (66744766).

The spelling of 13040735 in words is "thirteen million, forty thousand, seven hundred thirty-five".