2021450856 has 16 divisors (see below), whose sum is σ = 5053627200. Its totient is φ = 673816944.

The previous prime is 2021450843. The next prime is 2021450863. The reversal of 2021450856 is 6580541202.

2021450856 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42113536 + ... + 42113583.

It is an arithmetic number, because the mean of its divisors is an integer number (315851700).

Almost surely, 2^2021450856 is an apocalyptic number.

It is an amenable number.

2021450856 is an abundant number, since it is smaller than the sum of its proper divisors (3032176344).

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

2021450856 is a wasteful number, since it uses less digits than its factorization.

2021450856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84227128 (or 84227124 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 2021450856 is about 44960.5477724638. The cubic root of 2021450856 is about 1264.4094388085.

The spelling of 2021450856 in words is "two billion, twenty-one million, four hundred fifty thousand, eight hundred fifty-six".