22272349 has 24 divisors (see below), whose sum is σ = 26199936. Its totient is φ = 18876000.

The previous prime is 22272347. The next prime is 22272359. The reversal of 22272349 is 94327222.

It is not a de Polignac number, because 22272349 - 2¹ = 22272347 is a prime.

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 22272349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22272343) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147424 + ... + 147574.

It is an arithmetic number, because the mean of its divisors is an integer number (1091664).

Almost surely, 2^22272349 is an apocalyptic number.

It is an amenable number.

22272349 is a deficient number, since it is larger than the sum of its proper divisors (3927587).

22272349 is a wasteful number, since it uses less digits than its factorization.

22272349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 238 counting only the distinct ones).

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

The square root of 22272349 is about 4719.3589607064. The cubic root of 22272349 is about 281.3554558285.

The spelling of 22272349 in words is "twenty-two million, two hundred seventy-two thousand, three hundred forty-nine".