22722349 has 8 divisors (see below), whose sum is σ = 25260032. Its totient is φ = 20297520.

The previous prime is 22722311. The next prime is 22722391. The reversal of 22722349 is 94322722.

22722349 = 6² + 7² + ... + 408².

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

It is a cyclic number.

It is not a de Polignac number, because 22722349 - 2⁹ = 22721837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22722349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22722449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27789 + ... + 28594.

It is an arithmetic number, because the mean of its divisors is an integer number (3157504).

Almost surely, 2^22722349 is an apocalyptic number.

It is an amenable number.

22722349 is a deficient number, since it is larger than the sum of its proper divisors (2537683).

22722349 is a wasteful number, since it uses less digits than its factorization.

22722349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56427.

The product of its digits is 12096, while the sum is 31.

The square root of 22722349 is about 4766.7965133830. The cubic root of 22722349 is about 283.2377105999.

The spelling of 22722349 in words is "twenty-two million, seven hundred twenty-two thousand, three hundred forty-nine".