22261360 has 80 divisors (see below), whose sum is σ = 57933792. Its totient is φ = 7884800.

The previous prime is 22261321. The next prime is 22261361. The reversal of 22261360 is 6316222.

It is a happy number.

22261360 is nontrivially palindromic in base 9.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22261361) 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 15 ways as a sum of consecutive naturals, for example, 35772 + ... + 36388.

Almost surely, 2^22261360 is an apocalyptic number.

22261360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22261360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28966896).

22261360 is an abundant number, since it is smaller than the sum of its proper divisors (35672432).

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

22261360 is a wasteful number, since it uses less digits than its factorization.

22261360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 22261360 is about 4718.1945699600. The cubic root of 22261360 is about 281.3091753675.

Adding to 22261360 its reverse (6316222), we get a palindrome (28577582).

The spelling of 22261360 in words is "twenty-two million, two hundred sixty-one thousand, three hundred sixty".