22349729 has 16 divisors (see below), whose sum is σ = 23998464. Its totient is φ = 20779200.

The previous prime is 22349707. The next prime is 22349737. The reversal of 22349729 is 92794322.

It is a cyclic number.

It is not a de Polignac number, because 22349729 - 2¹⁶ = 22284193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22349692 and 22349701.

It is not an unprimeable number, because it can be changed into a prime (22349429) 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, 100112 + ... + 100334.

It is an arithmetic number, because the mean of its divisors is an integer number (1499904).

Almost surely, 2^22349729 is an apocalyptic number.

It is an amenable number.

22349729 is a deficient number, since it is larger than the sum of its proper divisors (1648735).

22349729 is a wasteful number, since it uses less digits than its factorization.

22349729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368.

The product of its digits is 54432, while the sum is 38.

The square root of 22349729 is about 4727.5499997356. The cubic root of 22349729 is about 281.6809135020.

It can be divided in two parts, 223 and 49729, that multiplied together give a cube (11089567 = 223³).

The spelling of 22349729 in words is "twenty-two million, three hundred forty-nine thousand, seven hundred twenty-nine".