22382340 has 48 divisors (see below), whose sum is σ = 64012032. Its totient is φ = 5840896.

The previous prime is 22382309. The next prime is 22382363. The reversal of 22382340 is 4328322.

It is a self number, because there is not a number n which added to its sum of digits gives 22382340.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1149 + ... + 6788.

It is an arithmetic number, because the mean of its divisors is an integer number (1333584).

Almost surely, 2^22382340 is an apocalyptic number.

22382340 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 22382340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32006016).

22382340 is an abundant number, since it is smaller than the sum of its proper divisors (41629692).

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

22382340 is a wasteful number, since it uses less digits than its factorization.

22382340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7996 (or 7994 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 22382340 is about 4730.9977805955. The cubic root of 22382340 is about 281.8178492728.

It can be divided in two parts, 22382 and 340, that added together give a palindrome (22722).

The spelling of 22382340 in words is "twenty-two million, three hundred eighty-two thousand, three hundred forty".