22758340 has 96 divisors (see below), whose sum is σ = 55738368. Its totient is φ = 7728000.

The previous prime is 22758299. The next prime is 22758343. The reversal of 22758340 is 4385722.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (22758343) 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, 320505 + ... + 320575.

It is an arithmetic number, because the mean of its divisors is an integer number (580608).

Almost surely, 2^22758340 is an apocalyptic number.

22758340 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 22758340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27869184).

22758340 is an abundant number, since it is smaller than the sum of its proper divisors (32980028).

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

22758340 is a wasteful number, since it uses less digits than its factorization.

22758340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 22758340 is about 4770.5701965279. The cubic root of 22758340 is about 283.3871762341.

The spelling of 22758340 in words is "twenty-two million, seven hundred fifty-eight thousand, three hundred forty".