22774983840 has 960 divisors, whose sum is σ = 98559901440. Its totient is φ = 4837294080.

The previous prime is 22774983817. The next prime is 22774983857. The reversal of 22774983840 is 4838947722.

It is a happy number.

22774983840 is a `hidden beast` number, since 2 + 2 + 77 + 498 + 3 + 84 + 0 = 666.

It is a super-2 number, since 2×22774983840² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 125828550 + ... + 125828730.

It is an arithmetic number, because the mean of its divisors is an integer number (102666564).

Almost surely, 2^22774983840 is an apocalyptic number.

22774983840 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 22774983840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49279950720).

22774983840 is an abundant number, since it is smaller than the sum of its proper divisors (75784917600).

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

22774983840 is a wasteful number, since it uses less digits than its factorization.

22774983840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307 (or 290 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

The spelling of 22774983840 in words is "twenty-two billion, seven hundred seventy-four million, nine hundred eighty-three thousand, eight hundred forty".