3030402021 has 16 divisors (see below), whose sum is σ = 4079120640. Its totient is φ = 2001000960.

The previous prime is 3030402013. The next prime is 3030402047. The reversal of 3030402021 is 1202040303.

It is not a de Polignac number, because 3030402021 - 2³ = 3030402013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3030402071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 771300 + ... + 775218.

It is an arithmetic number, because the mean of its divisors is an integer number (254945040).

Almost surely, 2^3030402021 is an apocalyptic number.

It is an amenable number.

3030402021 is a deficient number, since it is larger than the sum of its proper divisors (1048718619).

3030402021 is a wasteful number, since it uses less digits than its factorization.

3030402021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6316.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 3030402021 is about 55049.0873766314. The cubic root of 3030402021 is about 1447.1051273895.

Adding to 3030402021 its reverse (1202040303), we get a palindrome (4232442324).

The spelling of 3030402021 in words is "three billion, thirty million, four hundred two thousand, twenty-one".