22256340 has 48 divisors (see below), whose sum is σ = 64471680. Its totient is φ = 5729920.

The previous prime is 22256329. The next prime is 22256347. The reversal of 22256340 is 4365222.

It is a self number, because there is not a number n which added to its sum of digits gives 22256340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22256347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4656 + ... + 8135.

It is an arithmetic number, because the mean of its divisors is an integer number (1343160).

Almost surely, 2^22256340 is an apocalyptic number.

22256340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22256340 is an abundant number, since it is smaller than the sum of its proper divisors (42215340).

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

22256340 is a wasteful number, since it uses less digits than its factorization.

22256340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12832 (or 12830 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 22256340 is about 4717.6625568177. The cubic root of 22256340 is about 281.2880284381.

The spelling of 22256340 in words is "twenty-two million, two hundred fifty-six thousand, three hundred forty".