22393649 has 8 divisors (see below), whose sum is σ = 23040192. Its totient is φ = 21756240.

The previous prime is 22393643. The next prime is 22393663. The reversal of 22393649 is 94639322.

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 22393649 - 2¹² = 22389553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22393643) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2852 + ... + 7274.

It is an arithmetic number, because the mean of its divisors is an integer number (2880024).

Almost surely, 2^22393649 is an apocalyptic number.

It is an amenable number.

22393649 is a deficient number, since it is larger than the sum of its proper divisors (646543).

22393649 is an equidigital number, since it uses as much as digits as its factorization.

22393649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4567.

The product of its digits is 69984, while the sum is 38.

The square root of 22393649 is about 4732.1928320811. The cubic root of 22393649 is about 281.8653054583.

The spelling of 22393649 in words is "twenty-two million, three hundred ninety-three thousand, six hundred forty-nine".