22065424 has 10 divisors (see below), whose sum is σ = 42751790. Its totient is φ = 11032704.

The previous prime is 22065389. The next prime is 22065443. The reversal of 22065424 is 42456022.

It can be written as a sum of positive squares in only one way, i.e., 21529600 + 535824 = 4640^2 + 732^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 689529 + ... + 689560.

It is an arithmetic number, because the mean of its divisors is an integer number (4275179).

Almost surely, 2^22065424 is an apocalyptic number.

It is an amenable number.

22065424 is a deficient number, since it is larger than the sum of its proper divisors (20686366).

22065424 is a wasteful number, since it uses less digits than its factorization.

22065424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379097 (or 1379091 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 22065424 is about 4697.3848043353. The cubic root of 22065424 is about 280.4814167020.

The spelling of 22065424 in words is "twenty-two million, sixty-five thousand, four hundred twenty-four".