22285646 has 4 divisors (see below), whose sum is σ = 33428472. Its totient is φ = 11142822.

The previous prime is 22285619. The next prime is 22285699. The reversal of 22285646 is 64658222.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5571410 + ... + 5571413.

It is an arithmetic number, because the mean of its divisors is an integer number (8357118).

Almost surely, 2^22285646 is an apocalyptic number.

22285646 is a deficient number, since it is larger than the sum of its proper divisors (11142826).

22285646 is a wasteful number, since it uses less digits than its factorization.

22285646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11142825.

The product of its digits is 46080, while the sum is 35.

The square root of 22285646 is about 4720.7675223421. The cubic root of 22285646 is about 281.4114361418.

The spelling of 22285646 in words is "twenty-two million, two hundred eighty-five thousand, six hundred forty-six".