22380544 has 32 divisors (see below), whose sum is σ = 44825940. Its totient is φ = 11173888.

The previous prime is 22380521. The next prime is 22380569. The reversal of 22380544 is 44508322.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32427 + ... + 33109.

Almost surely, 2^22380544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22380544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22412970).

22380544 is an abundant number, since it is smaller than the sum of its proper divisors (22445396).

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

22380544 is an frugal number, since it uses more digits than its factorization.

22380544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 22380544 is about 4730.8079648195. The cubic root of 22380544 is about 281.8103112108.

Adding to 22380544 its reverse (44508322), we get a palindrome (66888866).

The spelling of 22380544 in words is "twenty-two million, three hundred eighty thousand, five hundred forty-four".