22142885 has 8 divisors (see below), whose sum is σ = 27970080. Its totient is φ = 16781904.

The previous prime is 22142881. The next prime is 22142927. The reversal of 22142885 is 58824122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22142885 - 2² = 22142881 is a prime.

It is a super-2 number, since 2×22142885² = 980614712246450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22142881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116447 + ... + 116636.

It is an arithmetic number, because the mean of its divisors is an integer number (3496260).

Almost surely, 2^22142885 is an apocalyptic number.

It is an amenable number.

22142885 is a deficient number, since it is larger than the sum of its proper divisors (5827195).

22142885 is a wasteful number, since it uses less digits than its factorization.

22142885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233107.

The product of its digits is 10240, while the sum is 32.

The square root of 22142885 is about 4705.6227005573. The cubic root of 22142885 is about 280.8092447843.

The spelling of 22142885 in words is "twenty-two million, one hundred forty-two thousand, eight hundred eighty-five".