3030721998 has 8 divisors (see below), whose sum is σ = 6061444008. Its totient is φ = 1010240664.

The previous prime is 3030721961. The next prime is 3030722003. The reversal of 3030721998 is 8991270303.

3030721998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

3030721998 is an admirable number.

It is a super-2 number, since 2×3030721998² = 18370551658322224008, which contains 22 as substring.

It is a congruent number.

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, 252560161 + ... + 252560172.

It is an arithmetic number, because the mean of its divisors is an integer number (757680501).

Almost surely, 2^3030721998 is an apocalyptic number.

3030721998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3030721998 is a wasteful number, since it uses less digits than its factorization.

3030721998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505120338.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 3030721998 is about 55051.9935878802. The cubic root of 3030721998 is about 1447.1560583725.

The spelling of 3030721998 in words is "three billion, thirty million, seven hundred twenty-one thousand, nine hundred ninety-eight".