3023721890 has 24 divisors (see below), whose sum is σ = 6331304412. Its totient is φ = 1036704480.

The previous prime is 3023721823. The next prime is 3023721901. The reversal of 3023721890 is 981273203.

It can be written as a sum of positive squares in 2 ways, for example, as 2940784441 + 82937449 = 54229^2 + 9107^2 .

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 3023721890.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3084941 + ... + 3085920.

Almost surely, 2^3023721890 is an apocalyptic number.

3023721890 is an abundant number, since it is smaller than the sum of its proper divisors (3307582522).

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

3023721890 is a wasteful number, since it uses less digits than its factorization.

3023721890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6170882 (or 6170875 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 3023721890 is about 54988.3795906008. The cubic root of 3023721890 is about 1446.0410261497.

The spelling of 3023721890 in words is "three billion, twenty-three million, seven hundred twenty-one thousand, eight hundred ninety".