22821974 has 8 divisors (see below), whose sum is σ = 39123408. Its totient is φ = 9780840.

The previous prime is 22821947. The next prime is 22822013. The reversal of 22821974 is 47912822.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 815057 + ... + 815084.

It is an arithmetic number, because the mean of its divisors is an integer number (4890426).

Almost surely, 2^22821974 is an apocalyptic number.

22821974 is a deficient number, since it is larger than the sum of its proper divisors (16301434).

22821974 is a wasteful number, since it uses less digits than its factorization.

22821974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630150.

The product of its digits is 16128, while the sum is 35.

The square root of 22821974 is about 4777.2349743340. The cubic root of 22821974 is about 283.6510542729.

The spelling of 22821974 in words is "twenty-two million, eight hundred twenty-one thousand, nine hundred seventy-four".