22071889 has 16 divisors (see below), whose sum is σ = 25804800. Its totient is φ = 18489744.

The previous prime is 22071883. The next prime is 22071893. The reversal of 22071889 is 98817022.

It is not a de Polignac number, because 22071889 - 2¹³ = 22063697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22071883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92232 + ... + 92470.

It is an arithmetic number, because the mean of its divisors is an integer number (1612800).

Almost surely, 2^22071889 is an apocalyptic number.

It is an amenable number.

22071889 is a deficient number, since it is larger than the sum of its proper divisors (3732911).

22071889 is a wasteful number, since it uses less digits than its factorization.

22071889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 22071889 is about 4698.0729027975. The cubic root of 22071889 is about 280.5088069951.

It can be divided in two parts, 2207 and 1889, that added together give a 12-th power (4096 = 2¹²).

The spelling of 22071889 in words is "twenty-two million, seventy-one thousand, eight hundred eighty-nine".