22429816 has 8 divisors (see below), whose sum is σ = 42055920. Its totient is φ = 11214904.

The previous prime is 22429811. The next prime is 22429819. The reversal of 22429816 is 61892422.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22429811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1401856 + ... + 1401871.

It is an arithmetic number, because the mean of its divisors is an integer number (5256990).

Almost surely, 2^22429816 is an apocalyptic number.

It is an amenable number.

22429816 is a deficient number, since it is larger than the sum of its proper divisors (19626104).

22429816 is a wasteful number, since it uses less digits than its factorization.

22429816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2803733 (or 2803729 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 22429816 is about 4736.0126689020. The cubic root of 22429816 is about 282.0169666032.

The spelling of 22429816 in words is "twenty-two million, four hundred twenty-nine thousand, eight hundred sixteen".