22843785240 has 320 divisors, whose sum is σ = 78244911360. Its totient is φ = 5976771840.

The previous prime is 22843785233. The next prime is 22843785247. The reversal of 22843785240 is 4258734822.

22843785240 is a `hidden beast` number, since 228 + 4 + 378 + 52 + 4 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (22843785233) and next prime (22843785247).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22843785247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 45414829 + ... + 45415331.

It is an arithmetic number, because the mean of its divisors is an integer number (244515348).

Almost surely, 2^22843785240 is an apocalyptic number.

22843785240 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 22843785240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39122455680).

22843785240 is an abundant number, since it is smaller than the sum of its proper divisors (55401126120).

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

22843785240 is a wasteful number, since it uses less digits than its factorization.

22843785240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764 (or 751 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 45.

The spelling of 22843785240 in words is "twenty-two billion, eight hundred forty-three million, seven hundred eighty-five thousand, two hundred forty".