22041564 has 12 divisors (see below), whose sum is σ = 51430344. Its totient is φ = 7347184.

The previous prime is 22041541. The next prime is 22041583. The reversal of 22041564 is 46514022.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 918387 + ... + 918410.

It is an arithmetic number, because the mean of its divisors is an integer number (4285862).

Almost surely, 2^22041564 is an apocalyptic number.

It is an amenable number.

22041564 is an abundant number, since it is smaller than the sum of its proper divisors (29388780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22041564 is a wasteful number, since it uses less digits than its factorization.

22041564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836804 (or 1836802 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 22041564 is about 4694.8444063675. The cubic root of 22041564 is about 280.3802826043.

Adding to 22041564 its reverse (46514022), we get a palindrome (68555586).

The spelling of 22041564 in words is "twenty-two million, forty-one thousand, five hundred sixty-four".