822472381458 has 594 divisors, whose sum is σ = 2414163668319. Its totient is φ = 209435937984.

The previous prime is 822472381441. The next prime is 822472381459. The reversal of 822472381458 is 854183274228.

It is a happy number.

822472381458 is a `hidden beast` number, since 8 + 22 + 472 + 3 + 8 + 145 + 8 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 136247359689 + 686225021769 = 369117^2 + 828387^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=641277.

It is a super-2 number, since 2×822472381458² (a number of 25 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (822472381459) by changing a digit.

It is a polite number, since it can be written in 296 ways as a sum of consecutive naturals, for example, 28361116588 + ... + 28361116616.

Almost surely, 2^822472381458 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 822472381458

822472381458 is an abundant number, since it is smaller than the sum of its proper divisors (1591691286861).

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

822472381458 is an equidigital number, since it uses as much as digits as its factorization.

822472381458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 54 counting only the distinct ones).

The product of its digits is 6881280, while the sum is 54.

The spelling of 822472381458 in words is "eight hundred twenty-two billion, four hundred seventy-two million, three hundred eighty-one thousand, four hundred fifty-eight".