22865340 has 96 divisors (see below), whose sum is σ = 70217280. Its totient is φ = 5533696.

The previous prime is 22865333. The next prime is 22865351. The reversal of 22865340 is 4356822.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 22865298 and 22865307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29194 + ... + 29966.

It is an arithmetic number, because the mean of its divisors is an integer number (731430).

Almost surely, 2^22865340 is an apocalyptic number.

22865340 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 22865340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35108640).

22865340 is an abundant number, since it is smaller than the sum of its proper divisors (47351940).

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

22865340 is a wasteful number, since it uses less digits than its factorization.

22865340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831 (or 829 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 22865340 is about 4781.7716382111. The cubic root of 22865340 is about 283.8306038678.

It can be divided in two parts, 2286 and 5340, that added together give a triangular number (7626 = T₁₂₃).

The spelling of 22865340 in words is "twenty-two million, eight hundred sixty-five thousand, three hundred forty".