1029222820 has 24 divisors (see below), whose sum is σ = 2167611264. Its totient is φ = 410499936.

The previous prime is 1029222809. The next prime is 1029222829. The reversal of 1029222820 is 282229201.

1029222820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1029222820² = 2118599226417504800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1029222829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67212 + ... + 81091.

It is an arithmetic number, because the mean of its divisors is an integer number (90317136).

Almost surely, 2^1029222820 is an apocalyptic number.

1029222820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1029222820 is an abundant number, since it is smaller than the sum of its proper divisors (1138388444).

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

1029222820 is a wasteful number, since it uses less digits than its factorization.

1029222820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148659 (or 148657 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1029222820 is about 32081.5027702881. The cubic root of 1029222820 is about 1009.6475651689.

The spelling of 1029222820 in words is "one billion, twenty-nine million, two hundred twenty-two thousand, eight hundred twenty".