22642870 has 16 divisors (see below), whose sum is σ = 42902640. Its totient is φ = 8580384.

The previous prime is 22642831. The next prime is 22642871. The reversal of 22642870 is 7824622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22642871) 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 7 ways as a sum of consecutive naturals, for example, 59397 + ... + 59776.

It is an arithmetic number, because the mean of its divisors is an integer number (2681415).

Almost surely, 2^22642870 is an apocalyptic number.

22642870 is a deficient number, since it is larger than the sum of its proper divisors (20259770).

22642870 is a wasteful number, since it uses less digits than its factorization.

22642870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119199.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 22642870 is about 4758.4524795358. The cubic root of 22642870 is about 282.9070853312.

The spelling of 22642870 in words is "twenty-two million, six hundred forty-two thousand, eight hundred seventy".