22288942 has 8 divisors (see below), whose sum is σ = 36005256. Its totient is φ = 10287192.

The previous prime is 22288939. The next prime is 22288943. The reversal of 22288942 is 24988222.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22288943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428608 + ... + 428659.

It is an arithmetic number, because the mean of its divisors is an integer number (4500657).

Almost surely, 2^22288942 is an apocalyptic number.

22288942 is a deficient number, since it is larger than the sum of its proper divisors (13716314).

22288942 is a wasteful number, since it uses less digits than its factorization.

22288942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857282.

The product of its digits is 36864, while the sum is 37.

The square root of 22288942 is about 4721.1166052111. The cubic root of 22288942 is about 281.4253088436.

The spelling of 22288942 in words is "twenty-two million, two hundred eighty-eight thousand, nine hundred forty-two".