22755740 has 96 divisors (see below), whose sum is σ = 58834944. Its totient is φ = 7223040.

The previous prime is 22755739. The next prime is 22755743. The reversal of 22755740 is 4755722.

It is a junction number, because it is equal to n+sod(n) for n = 22755697 and 22755706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22755743) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119045 + ... + 119235.

It is an arithmetic number, because the mean of its divisors is an integer number (612864).

Almost surely, 2^22755740 is an apocalyptic number.

22755740 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 22755740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29417472).

22755740 is an abundant number, since it is smaller than the sum of its proper divisors (36079204).

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

22755740 is a wasteful number, since it uses less digits than its factorization.

22755740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 22755740 is about 4770.2976846314. The cubic root of 22755740 is about 283.3763840774.

The spelling of 22755740 in words is "twenty-two million, seven hundred fifty-five thousand, seven hundred forty".