22345213 has 8 divisors (see below), whose sum is σ = 25436736. Its totient is φ = 19430400.

The previous prime is 22345207. The next prime is 22345231. The reversal of 22345213 is 31254322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-22345213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22345613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43908 + ... + 44413.

It is an arithmetic number, because the mean of its divisors is an integer number (3179592).

Almost surely, 2^22345213 is an apocalyptic number.

22345213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

22345213 is a deficient number, since it is larger than the sum of its proper divisors (3091523).

22345213 is a wasteful number, since it uses less digits than its factorization.

22345213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88355.

The product of its digits is 1440, while the sum is 22.

The square root of 22345213 is about 4727.0723497742. The cubic root of 22345213 is about 281.6619400177.

Adding to 22345213 its reverse (31254322), we get a palindrome (53599535).

It can be divided in two parts, 2234 and 5213, that added together give a palindrome (7447).

The spelling of 22345213 in words is "twenty-two million, three hundred forty-five thousand, two hundred thirteen".