2858728920 has 32 divisors (see below), whose sum is σ = 8576187120. Its totient is φ = 762327680.

The previous prime is 2858728919. The next prime is 2858728933. The reversal of 2858728920 is 298278582.

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 7 ways as a sum of consecutive naturals, for example, 11911251 + ... + 11911490.

Almost surely, 2^2858728920 is an apocalyptic number.

2858728920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2858728920 is an abundant number, since it is smaller than the sum of its proper divisors (5717458200).

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

2858728920 is a wasteful number, since it uses less digits than its factorization.

2858728920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23822755 (or 23822751 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 51.

The square root of 2858728920 is about 53467.0825835859. The cubic root of 2858728920 is about 1419.2459330358.

The spelling of 2858728920 in words is "two billion, eight hundred fifty-eight million, seven hundred twenty-eight thousand, nine hundred twenty".