22068340 has 48 divisors (see below), whose sum is σ = 53246592. Its totient is φ = 7526016.

The previous prime is 22068337. The next prime is 22068341. The reversal of 22068340 is 4386022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22068341) 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, 39342 + ... + 39898.

It is an arithmetic number, because the mean of its divisors is an integer number (1109304).

Almost surely, 2^22068340 is an apocalyptic number.

22068340 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 22068340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26623296).

22068340 is an abundant number, since it is smaller than the sum of its proper divisors (31178252).

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

22068340 is a wasteful number, since it uses less digits than its factorization.

22068340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856 (or 854 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 22068340 is about 4697.6951795535. The cubic root of 22068340 is about 280.4937715939.

The spelling of 22068340 in words is "twenty-two million, sixty-eight thousand, three hundred forty".