22361646 has 16 divisors (see below), whose sum is σ = 45814608. Its totient is φ = 7272000.

The previous prime is 22361641. The next prime is 22361657. The reversal of 22361646 is 64616322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22361641) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 45205 + ... + 45696.

It is an arithmetic number, because the mean of its divisors is an integer number (2863413).

Almost surely, 2^22361646 is an apocalyptic number.

22361646 is an abundant number, since it is smaller than the sum of its proper divisors (23452962).

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

22361646 is a wasteful number, since it uses less digits than its factorization.

22361646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90947.

The product of its digits is 10368, while the sum is 30.

The square root of 22361646 is about 4728.8102097674. The cubic root of 22361646 is about 281.7309692171.

Adding to 22361646 its reverse (64616322), we get a palindrome (86977968).

The spelling of 22361646 in words is "twenty-two million, three hundred sixty-one thousand, six hundred forty-six".