1028620912 has 40 divisors (see below), whose sum is σ = 2182686192. Its totient is φ = 465715200.

The previous prime is 1028620907. The next prime is 1028620913. The reversal of 1028620912 is 2190268201.

1028620912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028620913) 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, 33862 + ... + 56602.

Almost surely, 2^1028620912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1028620912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1091343096).

1028620912 is an abundant number, since it is smaller than the sum of its proper divisors (1154065280).

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

1028620912 is a wasteful number, since it uses less digits than its factorization.

1028620912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23017 (or 23011 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1028620912 is about 32072.1204786961. The cubic root of 1028620912 is about 1009.4507067754.

The spelling of 1028620912 in words is "one billion, twenty-eight million, six hundred twenty thousand, nine hundred twelve".