822634540 has 108 divisors (see below), whose sum is σ = 2176490736. Its totient is φ = 260297856.

The previous prime is 822634523. The next prime is 822634577. The reversal of 822634540 is 45436228.

It is a junction number, because it is equal to n+sod(n) for n = 822634496 and 822634505.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 163137 + ... + 168103.

It is an arithmetic number, because the mean of its divisors is an integer number (20152692).

Almost surely, 2^822634540 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 822634540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1088245368).

822634540 is an abundant number, since it is smaller than the sum of its proper divisors (1353856196).

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

822634540 is a wasteful number, since it uses less digits than its factorization.

822634540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016 (or 4994 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 822634540 is about 28681.6063009030. The cubic root of 822634540 is about 936.9914905107.

The spelling of 822634540 in words is "eight hundred twenty-two million, six hundred thirty-four thousand, five hundred forty".