22370320 has 80 divisors (see below), whose sum is σ = 60888960. Its totient is φ = 7483392.

The previous prime is 22370303. The next prime is 22370321. The reversal of 22370320 is 2307322.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (22370321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23616 + ... + 24544.

It is an arithmetic number, because the mean of its divisors is an integer number (761112).

Almost surely, 2^22370320 is an apocalyptic number.

22370320 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 22370320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30444480).

22370320 is an abundant number, since it is smaller than the sum of its proper divisors (38518640).

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

22370320 is a wasteful number, since it uses less digits than its factorization.

22370320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992 (or 986 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 22370320 is about 4729.7272648642. The cubic root of 22370320 is about 281.7673919760.

Adding to 22370320 its reverse (2307322), we get a palindrome (24677642).

The spelling of 22370320 in words is "twenty-two million, three hundred seventy thousand, three hundred twenty".