22063140 has 108 divisors (see below), whose sum is σ = 73634652. Its totient is φ = 5343360.

The previous prime is 22063133. The next prime is 22063157. The reversal of 22063140 is 4136022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2509056 + 19554084 = 1584^2 + 4422^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 21274 + ... + 22286.

Almost surely, 2^22063140 is an apocalyptic number.

22063140 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 22063140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36817326).

22063140 is an abundant number, since it is smaller than the sum of its proper divisors (51571512).

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

22063140 is a wasteful number, since it uses less digits than its factorization.

22063140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050 (or 1034 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 22063140 is about 4697.1416840457. The cubic root of 22063140 is about 280.4717387905.

Adding to 22063140 its reverse (4136022), we get a palindrome (26199162).

The spelling of 22063140 in words is "twenty-two million, sixty-three thousand, one hundred forty".