822635040 has 48 divisors (see below), whose sum is σ = 2591301888. Its totient is φ = 219369216.

The previous prime is 822634993. The next prime is 822635057. The reversal of 822635040 is 40536228.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 822634989 and 822635007.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 856432 + ... + 857391.

It is an arithmetic number, because the mean of its divisors is an integer number (53985456).

Almost surely, 2^822635040 is an apocalyptic number.

822635040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

822635040 is an abundant number, since it is smaller than the sum of its proper divisors (1768666848).

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

822635040 is a wasteful number, since it uses less digits than its factorization.

822635040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713841 (or 1713833 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 822635040 is about 28681.6150172894. The cubic root of 822635040 is about 936.9916803461.

The spelling of 822635040 in words is "eight hundred twenty-two million, six hundred thirty-five thousand, forty".