22625040 has 80 divisors (see below), whose sum is σ = 72423936. Its totient is φ = 5836800.

The previous prime is 22625033. The next prime is 22625041. The reversal of 22625040 is 4052622.

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

It is a junction number, because it is equal to n+sod(n) for n = 22624998 and 22625016.

It is not an unprimeable number, because it can be changed into a prime (22625041) 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, 5920 + ... + 8960.

Almost surely, 2^22625040 is an apocalyptic number.

22625040 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 22625040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36211968).

22625040 is an abundant number, since it is smaller than the sum of its proper divisors (49798896).

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

22625040 is a wasteful number, since it uses less digits than its factorization.

22625040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3088 (or 3082 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 22625040 is about 4756.5786023149. The cubic root of 22625040 is about 282.8328079696.

Adding to 22625040 its reverse (4052622), we get a palindrome (26677662).

The spelling of 22625040 in words is "twenty-two million, six hundred twenty-five thousand, forty".