822426284240 has 320 divisors, whose sum is σ = 2237423938560. Its totient is φ = 280146944000.

The previous prime is 822426284227. The next prime is 822426284269. The reversal of 822426284240 is 42482624228.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 822426284191 and 822426284200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 432627290 + ... + 432629190.

It is an arithmetic number, because the mean of its divisors is an integer number (6991949808).

Almost surely, 2^822426284240 is an apocalyptic number.

822426284240 is a gapful number since it is divisible by the number (80) 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 822426284240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1118711969280).

822426284240 is an abundant number, since it is smaller than the sum of its proper divisors (1414997654320).

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

822426284240 is a wasteful number, since it uses less digits than its factorization.

822426284240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203 (or 2175 counting only the distinct ones).

The product of its (nonzero) digits is 786432, while the sum is 44.

The spelling of 822426284240 in words is "eight hundred twenty-two billion, four hundred twenty-six million, two hundred eighty-four thousand, two hundred forty".