1028620884 has 24 divisors (see below), whose sum is σ = 2400959008. Its totient is φ = 342753120.

The previous prime is 1028620877. The next prime is 1028620907. The reversal of 1028620884 is 4880268201.

1028620884 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 an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24699 + ... + 51645.

Almost surely, 2^1028620884 is an apocalyptic number.

It is an amenable number.

1028620884 is an abundant number, since it is smaller than the sum of its proper divisors (1372338124).

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

1028620884 is a wasteful number, since it uses less digits than its factorization.

1028620884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30135 (or 30133 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 39.

The square root of 1028620884 is about 32072.1200421799. The cubic root of 1028620884 is about 1009.4506976161.

The spelling of 1028620884 in words is "one billion, twenty-eight million, six hundred twenty thousand, eight hundred eighty-four".