22613405 has 4 divisors (see below), whose sum is σ = 27136092. Its totient is φ = 18090720.

The previous prime is 22613369. The next prime is 22613411. The reversal of 22613405 is 50431622.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17355556 + 5257849 = 4166^2 + 2293^2 .

It is not a de Polignac number, because 22613405 - 2¹² = 22609309 is a prime.

It is a super-2 number, since 2×22613405² = 1022732171388050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2261336 + ... + 2261345.

It is an arithmetic number, because the mean of its divisors is an integer number (6784023).

Almost surely, 2^22613405 is an apocalyptic number.

It is an amenable number.

22613405 is a deficient number, since it is larger than the sum of its proper divisors (4522687).

22613405 is an equidigital number, since it uses as much as digits as its factorization.

22613405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4522686.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 22613405 is about 4755.3554020704. The cubic root of 22613405 is about 282.7843170943.

It can be divided in two parts, 226 and 13405, that added together give a palindrome (13631).

The spelling of 22613405 in words is "twenty-two million, six hundred thirteen thousand, four hundred five".