22858740 has 48 divisors (see below), whose sum is σ = 71117760. Its totient is φ = 6095520.

The previous prime is 22858739. The next prime is 22858747. The reversal of 22858740 is 4785822.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 22858695 and 22858704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22858747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20626 + ... + 21705.

It is an arithmetic number, because the mean of its divisors is an integer number (1481620).

Almost surely, 2^22858740 is an apocalyptic number.

22858740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22858740 is an abundant number, since it is smaller than the sum of its proper divisors (48259020).

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

22858740 is a wasteful number, since it uses less digits than its factorization.

22858740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42349 (or 42341 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 22858740 is about 4781.0814676180. The cubic root of 22858740 is about 283.8032923378.

It can be divided in two parts, 2285 and 8740, that added together give a square (11025 = 105²).

The spelling of 22858740 in words is "twenty-two million, eight hundred fifty-eight thousand, seven hundred forty".