22107040 has 48 divisors (see below), whose sum is σ = 52540488. Its totient is φ = 8790016.

The previous prime is 22107011. The next prime is 22107047. The reversal of 22107040 is 4070122.

It can be written as a sum of positive squares in 4 ways, for example, as 15776784 + 6330256 = 3972^2 + 2516^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (22107047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36984 + ... + 37576.

Almost surely, 2^22107040 is an apocalyptic number.

22107040 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 22107040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26270244).

22107040 is an abundant number, since it is smaller than the sum of its proper divisors (30433448).

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

22107040 is a wasteful number, since it uses less digits than its factorization.

22107040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841 (or 833 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 22107040 is about 4701.8124165049. The cubic root of 22107040 is about 280.6576378658.

Adding to 22107040 its reverse (4070122), we get a palindrome (26177162).

The spelling of 22107040 in words is "twenty-two million, one hundred seven thousand, forty".