22359840 has 96 divisors (see below), whose sum is σ = 72394560. Its totient is φ = 5796864.

The previous prime is 22359829. The next prime is 22359847. The reversal of 22359840 is 4895322.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (22359847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17131 + ... + 18389.

It is an arithmetic number, because the mean of its divisors is an integer number (754110).

Almost surely, 2^22359840 is an apocalyptic number.

22359840 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 22359840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36197280).

22359840 is an abundant number, since it is smaller than the sum of its proper divisors (50034720).

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

22359840 is a wasteful number, since it uses less digits than its factorization.

22359840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314 (or 1306 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 22359840 is about 4728.6192487871. The cubic root of 22359840 is about 281.7233845066.

The spelling of 22359840 in words is "twenty-two million, three hundred fifty-nine thousand, eight hundred forty".