2020023990 has 48 divisors (see below), whose sum is σ = 5480418528. Its totient is φ = 515251968.

The previous prime is 2020023989. The next prime is 2020024001. The reversal of 2020023990 is 993200202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 485859 + ... + 489998.

It is an arithmetic number, because the mean of its divisors is an integer number (114175386).

Almost surely, 2^2020023990 is an apocalyptic number.

2020023990 is an abundant number, since it is smaller than the sum of its proper divisors (3460394538).

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

2020023990 is a wasteful number, since it uses less digits than its factorization.

2020023990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975893 (or 975890 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 2020023990 is about 44944.6769929432. The cubic root of 2020023990 is about 1264.1118691213. Note that the first 3 decimals are identical.

The spelling of 2020023990 in words is "two billion, twenty million, twenty-three thousand, nine hundred ninety".