22339749 has 16 divisors (see below), whose sum is σ = 30736832. Its totient is φ = 14421888.

The previous prime is 22339741. The next prime is 22339777. The reversal of 22339749 is 94793322.

It is not a de Polignac number, because 22339749 - 2³ = 22339741 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 (22339741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34422 + ... + 35064.

It is an arithmetic number, because the mean of its divisors is an integer number (1921052).

Almost surely, 2^22339749 is an apocalyptic number.

It is an amenable number.

22339749 is a deficient number, since it is larger than the sum of its proper divisors (8397083).

22339749 is a wasteful number, since it uses less digits than its factorization.

22339749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996.

The product of its digits is 81648, while the sum is 39.

The square root of 22339749 is about 4726.4943668643. The cubic root of 22339749 is about 281.6389801963.

It can be divided in two parts, 223397 and 49, that added together give a triangular number (223446 = T₆₆₈).

The spelling of 22339749 in words is "twenty-two million, three hundred thirty-nine thousand, seven hundred forty-nine".