13440022 has 4 divisors (see below), whose sum is σ = 20160036. Its totient is φ = 6720010.

The previous prime is 13440001. The next prime is 13440041. The reversal of 13440022 is 22004431.

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

It is a junction number, because it is equal to n+sod(n) for n = 13439978 and 13440005.

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, 3360004 + ... + 3360007.

It is an arithmetic number, because the mean of its divisors is an integer number (5040009).

Almost surely, 2^13440022 is an apocalyptic number.

13440022 is a deficient number, since it is larger than the sum of its proper divisors (6720014).

13440022 is an equidigital number, since it uses as much as digits as its factorization.

13440022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6720013.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 13440022 is about 3666.0635564594. The cubic root of 13440022 is about 237.7570078389.

Adding to 13440022 its reverse (22004431), we get a palindrome (35444453).

The spelling of 13440022 in words is "thirteen million, four hundred forty thousand, twenty-two".