22313409 has 4 divisors (see below), whose sum is σ = 29751216. Its totient is φ = 14875604.

The previous prime is 22313393. The next prime is 22313411. The reversal of 22313409 is 90431322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22313409 - 2⁴ = 22313393 is a prime.

It is a super-3 number, since 3×22313409³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22313449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3718899 + ... + 3718904.

It is an arithmetic number, because the mean of its divisors is an integer number (7437804).

Almost surely, 2^22313409 is an apocalyptic number.

It is an amenable number.

22313409 is a deficient number, since it is larger than the sum of its proper divisors (7437807).

22313409 is an equidigital number, since it uses as much as digits as its factorization.

22313409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7437806.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 22313409 is about 4723.7071247062. The cubic root of 22313409 is about 281.5282465107.

It can be divided in two parts, 22313 and 409, that added together give a palindrome (22722).

The spelling of 22313409 in words is "twenty-two million, three hundred thirteen thousand, four hundred nine".