22868642 has 4 divisors (see below), whose sum is σ = 34302966. Its totient is φ = 11434320.

The previous prime is 22868633. The next prime is 22868663. The reversal of 22868642 is 24686822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20241001 + 2627641 = 4499^2 + 1621^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22868596 and 22868605.

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 as a sum of consecutive naturals, namely, 5717159 + ... + 5717162.

Almost surely, 2^22868642 is an apocalyptic number.

22868642 is a deficient number, since it is larger than the sum of its proper divisors (11434324).

22868642 is a wasteful number, since it uses less digits than its factorization.

22868642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11434323.

The product of its digits is 73728, while the sum is 38.

The square root of 22868642 is about 4782.1168952672. The cubic root of 22868642 is about 283.8442659366.

The spelling of 22868642 in words is "twenty-two million, eight hundred sixty-eight thousand, six hundred forty-two".