13240922 has 4 divisors (see below), whose sum is σ = 19861386. Its totient is φ = 6620460.

The previous prime is 13240921. The next prime is 13240933. The reversal of 13240922 is 22904231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22904231 = 7 ⋅3272033.

It can be written as a sum of positive squares in only one way, i.e., 13039321 + 201601 = 3611^2 + 449^2 .

It is not an unprimeable number, because it can be changed into a prime (13240921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3310229 + ... + 3310232.

Almost surely, 2^13240922 is an apocalyptic number.

13240922 is a deficient number, since it is larger than the sum of its proper divisors (6620464).

13240922 is an equidigital number, since it uses as much as digits as its factorization.

13240922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6620463.

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

The square root of 13240922 is about 3638.8077717846. The cubic root of 13240922 is about 236.5771210091.

The spelling of 13240922 in words is "thirteen million, two hundred forty thousand, nine hundred twenty-two".