22463520 has 96 divisors (see below), whose sum is σ = 72176832. Its totient is φ = 5870592.

The previous prime is 22463513. The next prime is 22463521. The reversal of 22463520 is 2536422.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (22463521) 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, 24999 + ... + 25881.

It is an arithmetic number, because the mean of its divisors is an integer number (751842).

Almost surely, 2^22463520 is an apocalyptic number.

22463520 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 22463520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36088416).

22463520 is an abundant number, since it is smaller than the sum of its proper divisors (49713312).

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

22463520 is a wasteful number, since it uses less digits than its factorization.

22463520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954 (or 946 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 22463520 is about 4739.5696007127. The cubic root of 22463520 is about 282.1581528244.

Adding to 22463520 its reverse (2536422), we get a palindrome (24999942).

The spelling of 22463520 in words is "twenty-two million, four hundred sixty-three thousand, five hundred twenty".