22071856 has 10 divisors (see below), whose sum is σ = 42764252. Its totient is φ = 11035920.

The previous prime is 22071851. The next prime is 22071883. The reversal of 22071856 is 65817022.

It is not an unprimeable number, because it can be changed into a prime (22071851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 689730 + ... + 689761.

Almost surely, 2^22071856 is an apocalyptic number.

It is an amenable number.

22071856 is a deficient number, since it is larger than the sum of its proper divisors (20692396).

22071856 is a wasteful number, since it uses less digits than its factorization.

22071856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379499 (or 1379493 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 22071856 is about 4698.0693907179. The cubic root of 22071856 is about 280.5086671974.

Adding to 22071856 its reverse (65817022), we get a palindrome (87888878).

The spelling of 22071856 in words is "twenty-two million, seventy-one thousand, eight hundred fifty-six".