22034240 has 56 divisors (see below), whose sum is σ = 53916072. Its totient is φ = 8570880.

The previous prime is 22034239. The next prime is 22034249. The reversal of 22034240 is 4243022.

It can be written as a sum of positive squares in 4 ways, for example, as 652864 + 21381376 = 808^2 + 4624^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22034249) 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, 10910 + ... + 12770.

It is an arithmetic number, because the mean of its divisors is an integer number (962787).

Almost surely, 2^22034240 is an apocalyptic number.

22034240 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 22034240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26958036).

22034240 is an abundant number, since it is smaller than the sum of its proper divisors (31881832).

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

22034240 is a wasteful number, since it uses less digits than its factorization.

22034240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915 (or 1905 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 22034240 is about 4694.0643370112. The cubic root of 22034240 is about 280.3492241204.

Adding to 22034240 its reverse (4243022), we get a palindrome (26277262).

The spelling of 22034240 in words is "twenty-two million, thirty-four thousand, two hundred forty".