22050140 has 48 divisors (see below), whose sum is σ = 53222400. Its totient is φ = 7516992.

The previous prime is 22050131. The next prime is 22050143. The reversal of 22050140 is 4105022.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22050143) 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, 33131 + ... + 33789.

It is an arithmetic number, because the mean of its divisors is an integer number (1108800).

Almost surely, 2^22050140 is an apocalyptic number.

22050140 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 22050140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26611200).

22050140 is an abundant number, since it is smaller than the sum of its proper divisors (31172260).

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

22050140 is a wasteful number, since it uses less digits than its factorization.

22050140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914 (or 912 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 22050140 is about 4695.7576598457. The cubic root of 22050140 is about 280.4166416321.

Adding to 22050140 its reverse (4105022), we get a palindrome (26155162).

The spelling of 22050140 in words is "twenty-two million, fifty thousand, one hundred forty".