822063420 has 72 divisors (see below), whose sum is σ = 2501632224. Its totient is φ = 218510208.

The previous prime is 822063419. The next prime is 822063421. The reversal of 822063420 is 24360228.

822063420 is a `hidden beast` number, since 8 + 2 + 2 + 0 + 634 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (822063419) and next prime (822063421).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822063421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49857 + ... + 64263.

It is an arithmetic number, because the mean of its divisors is an integer number (34744892).

Almost surely, 2^822063420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 822063420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1250816112).

822063420 is an abundant number, since it is smaller than the sum of its proper divisors (1679568804).

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

822063420 is a wasteful number, since it uses less digits than its factorization.

822063420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14739 (or 14734 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 822063420 is about 28671.6483655893. The cubic root of 822063420 is about 936.7746025966.

The spelling of 822063420 in words is "eight hundred twenty-two million, sixty-three thousand, four hundred twenty".