22756340 has 12 divisors (see below), whose sum is σ = 47788356. Its totient is φ = 9102528.

The previous prime is 22756339. The next prime is 22756367. The reversal of 22756340 is 4365722.

It can be written as a sum of positive squares in 2 ways, for example, as 3290596 + 19465744 = 1814^2 + 4412^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568889 + ... + 568928.

It is an arithmetic number, because the mean of its divisors is an integer number (3982363).

Almost surely, 2^22756340 is an apocalyptic number.

22756340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22756340 is an abundant number, since it is smaller than the sum of its proper divisors (25032016).

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

22756340 is a wasteful number, since it uses less digits than its factorization.

22756340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137826 (or 1137824 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 22756340 is about 4770.3605733739. The cubic root of 22756340 is about 283.3788746480.

The spelling of 22756340 in words is "twenty-two million, seven hundred fifty-six thousand, three hundred forty".