1022823645 has 16 divisors (see below), whose sum is σ = 1641382080. Its totient is φ = 543884544.

The previous prime is 1022823631. The next prime is 1022823653. The reversal of 1022823645 is 5463282201.

It is not a de Polignac number, because 1022823645 - 2⁴ = 1022823629 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96115 + ... + 106224.

It is an arithmetic number, because the mean of its divisors is an integer number (102586380).

Almost surely, 2^1022823645 is an apocalyptic number.

1022823645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1022823645 is a deficient number, since it is larger than the sum of its proper divisors (618558435).

1022823645 is a wasteful number, since it uses less digits than its factorization.

1022823645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202684.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 1022823645 is about 31981.6141712703. The cubic root of 1022823645 is about 1007.5507247252.

The spelling of 1022823645 in words is "one billion, twenty-two million, eight hundred twenty-three thousand, six hundred forty-five".