22601440 has 48 divisors (see below), whose sum is σ = 55248480. Its totient is φ = 8727040.

The previous prime is 22601437. The next prime is 22601441. The reversal of 22601440 is 4410622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22601441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2205 + ... + 7075.

It is an arithmetic number, because the mean of its divisors is an integer number (1151010).

Almost surely, 2^22601440 is an apocalyptic number.

22601440 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 22601440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27624240).

22601440 is an abundant number, since it is smaller than the sum of its proper divisors (32647040).

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

22601440 is a wasteful number, since it uses less digits than its factorization.

22601440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4915 (or 4907 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 22601440 is about 4754.0971803277. The cubic root of 22601440 is about 282.7344335366.

The spelling of 22601440 in words is "twenty-two million, six hundred one thousand, four hundred forty".