22508064 has 96 divisors (see below), whose sum is σ = 66528000. Its totient is φ = 7402752.

The previous prime is 22508041. The next prime is 22508069. The reversal of 22508064 is 46080522.

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

It is a super-2 number, since 2×22508064² = 1013225890056192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (22508069) 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, 94057 + ... + 94295.

It is an arithmetic number, because the mean of its divisors is an integer number (693000).

Almost surely, 2^22508064 is an apocalyptic number.

22508064 is a gapful number since it is divisible by the number (24) 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 22508064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33264000).

22508064 is an abundant number, since it is smaller than the sum of its proper divisors (44019936).

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

22508064 is a wasteful number, since it uses less digits than its factorization.

22508064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367 (or 353 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 22508064 is about 4744.2664343395. The cubic root of 22508064 is about 282.3445313672.

Adding to 22508064 its reverse (46080522), we get a palindrome (68588586).

The spelling of 22508064 in words is "twenty-two million, five hundred eight thousand, sixty-four".