22287982 has 8 divisors (see below), whose sum is σ = 33676416. Its totient is φ = 11062512.

The previous prime is 22287971. The next prime is 22287983. The reversal of 22287982 is 28978222.

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 (22287983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40398 + ... + 40945.

It is an arithmetic number, because the mean of its divisors is an integer number (4209552).

Almost surely, 2^22287982 is an apocalyptic number.

22287982 is a deficient number, since it is larger than the sum of its proper divisors (11388434).

22287982 is a wasteful number, since it uses less digits than its factorization.

22287982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81482.

The product of its digits is 64512, while the sum is 40.

The square root of 22287982 is about 4721.0149332532. The cubic root of 22287982 is about 281.4212683920.

The spelling of 22287982 in words is "twenty-two million, two hundred eighty-seven thousand, nine hundred eighty-two".