1022825778 has 64 divisors (see below), whose sum is σ = 2352430080. Its totient is φ = 294009408.

The previous prime is 1022825777. The next prime is 1022825779. The reversal of 1022825778 is 8775282201.

It is an interprime number because it is at equal distance from previous prime (1022825777) and next prime (1022825779).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1022825777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70513 + ... + 83771.

It is an arithmetic number, because the mean of its divisors is an integer number (36756720).

Almost surely, 2^1022825778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1022825778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1176215040).

1022825778 is an abundant number, since it is smaller than the sum of its proper divisors (1329604302).

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

1022825778 is a wasteful number, since it uses less digits than its factorization.

1022825778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13343.

The product of its (nonzero) digits is 125440, while the sum is 42.

The square root of 1022825778 is about 31981.6475185379. The cubic root of 1022825778 is about 1007.5514251080.

The spelling of 1022825778 in words is "one billion, twenty-two million, eight hundred twenty-five thousand, seven hundred seventy-eight".