22342644 has 36 divisors (see below), whose sum is σ = 58427460. Its totient is φ = 7190400.

The previous prime is 22342633. The next prime is 22342667. The reversal of 22342644 is 44624322.

It can be written as a sum of positive squares in 2 ways, for example, as 8054244 + 14288400 = 2838^2 + 3780^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9657 + ... + 11744.

It is an arithmetic number, because the mean of its divisors is an integer number (1622985).

Almost surely, 2^22342644 is an apocalyptic number.

It is an amenable number.

22342644 is an abundant number, since it is smaller than the sum of its proper divisors (36084816).

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

22342644 is a wasteful number, since it uses less digits than its factorization.

22342644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21440 (or 21435 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 22342644 is about 4726.8006092917. The cubic root of 22342644 is about 281.6511455020.

Adding to 22342644 its reverse (44624322), we get a palindrome (66966966).

The spelling of 22342644 in words is "twenty-two million, three hundred forty-two thousand, six hundred forty-four".