22003040 has 24 divisors (see below), whose sum is σ = 51982560. Its totient is φ = 8801152.

The previous prime is 22003039. The next prime is 22003043. The reversal of 22003040 is 4030022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22003043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68600 + ... + 68919.

It is an arithmetic number, because the mean of its divisors is an integer number (2165940).

Almost surely, 2^22003040 is an apocalyptic number.

22003040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22003040 is an abundant number, since it is smaller than the sum of its proper divisors (29979520).

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

22003040 is a wasteful number, since it uses less digits than its factorization.

22003040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137534 (or 137526 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 22003040 is about 4690.7398137181. The cubic root of 22003040 is about 280.2168388341.

Adding to 22003040 its reverse (4030022), we get a palindrome (26033062).

The spelling of 22003040 in words is "twenty-two million, three thousand, forty".