22144929 has 8 divisors (see below), whose sum is σ = 30810432. Its totient is φ = 14121360.

The previous prime is 22144921. The next prime is 22144933. The reversal of 22144929 is 92944122.

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

It is not a de Polignac number, because 22144929 - 2³ = 22144921 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22144929.

It is not an unprimeable number, because it can be changed into a prime (22144921) 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, 160402 + ... + 160539.

It is an arithmetic number, because the mean of its divisors is an integer number (3851304).

Almost surely, 2^22144929 is an apocalyptic number.

It is an amenable number.

22144929 is a deficient number, since it is larger than the sum of its proper divisors (8665503).

22144929 is a wasteful number, since it uses less digits than its factorization.

22144929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320967.

The product of its digits is 10368, while the sum is 33.

The square root of 22144929 is about 4705.8398825289. The cubic root of 22144929 is about 280.8178849778.

It can be divided in two parts, 221 and 44929, that added together give a triangular number (45150 = T₃₀₀).

The spelling of 22144929 in words is "twenty-two million, one hundred forty-four thousand, nine hundred twenty-nine".