2030579721 has 24 divisors (see below), whose sum is σ = 3015721800. Its totient is φ = 1315650816.

The previous prime is 2030579717. The next prime is 2030579729. The reversal of 2030579721 is 1279750302.

It can be written as a sum of positive squares in 4 ways, for example, as 1358733321 + 671846400 = 36861^2 + 25920^2 .

It is not a de Polignac number, because 2030579721 - 2² = 2030579717 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2030579729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 346411 + ... + 352223.

It is an arithmetic number, because the mean of its divisors is an integer number (125655075).

Almost surely, 2^2030579721 is an apocalyptic number.

It is an amenable number.

2030579721 is a deficient number, since it is larger than the sum of its proper divisors (985142079).

2030579721 is a wasteful number, since it uses less digits than its factorization.

2030579721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6905 (or 6902 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 2030579721 is about 45061.9542518964. The cubic root of 2030579721 is about 1266.3099369941.

The spelling of 2030579721 in words is "two billion, thirty million, five hundred seventy-nine thousand, seven hundred twenty-one".