22071944 has 16 divisors (see below), whose sum is σ = 42003600. Its totient is φ = 10870992.

The previous prime is 22071937. The next prime is 22071979. The reversal of 22071944 is 44917022.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20054 + ... + 21125.

It is an arithmetic number, because the mean of its divisors is an integer number (2625225).

Almost surely, 2^22071944 is an apocalyptic number.

It is an amenable number.

22071944 is a deficient number, since it is larger than the sum of its proper divisors (19931656).

22071944 is a wasteful number, since it uses less digits than its factorization.

22071944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41252 (or 41248 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 22071944 is about 4698.0787562577. The cubic root of 22071944 is about 280.5090399909.

Adding to 22071944 its reverse (44917022), we get a palindrome (66988966).

The spelling of 22071944 in words is "twenty-two million, seventy-one thousand, nine hundred forty-four".