22646542 has 8 divisors (see below), whose sum is σ = 34122816. Its totient is φ = 11272272.

The previous prime is 22646483. The next prime is 22646573. The reversal of 22646542 is 24564622.

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, 24943 + ... + 25834.

It is an arithmetic number, because the mean of its divisors is an integer number (4265352).

Almost surely, 2^22646542 is an apocalyptic number.

22646542 is a deficient number, since it is larger than the sum of its proper divisors (11476274).

22646542 is a wasteful number, since it uses less digits than its factorization.

22646542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51002.

The product of its digits is 23040, while the sum is 31.

The square root of 22646542 is about 4758.8383036199. The cubic root of 22646542 is about 282.9223775426.

The spelling of 22646542 in words is "twenty-two million, six hundred forty-six thousand, five hundred forty-two".