1022085720 has 96 divisors (see below), whose sum is σ = 3402846720. Its totient is φ = 265904640.

The previous prime is 1022085719. The next prime is 1022085749. The reversal of 1022085720 is 275802201.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 19864 + ... + 49383.

It is an arithmetic number, because the mean of its divisors is an integer number (35446320).

Almost surely, 2^1022085720 is an apocalyptic number.

1022085720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022085720 is an abundant number, since it is smaller than the sum of its proper divisors (2380761000).

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

1022085720 is a wasteful number, since it uses less digits than its factorization.

1022085720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69305 (or 69298 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 1022085720 is about 31970.0753830828. The cubic root of 1022085720 is about 1007.3083643585.

Adding to 1022085720 its reverse (275802201), we get a palindrome (1297887921).

The spelling of 1022085720 in words is "one billion, twenty-two million, eighty-five thousand, seven hundred twenty".