3030421 has 4 divisors (see below), whose sum is σ = 3034252. Its totient is φ = 3026592.

The previous prime is 3030409. The next prime is 3030431. The reversal of 3030421 is 1240303.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1240303 = 17 ⋅72959.

It can be written as a sum of positive squares in 2 ways, for example, as 1661521 + 1368900 = 1289^2 + 1170^2 .

It is a cyclic number.

It is not a de Polignac number, because 3030421 - 2⁵ = 3030389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3030431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240 + ... + 2473.

It is an arithmetic number, because the mean of its divisors is an integer number (758563).

Almost surely, 2^3030421 is an apocalyptic number.

It is an amenable number.

3030421 is a deficient number, since it is larger than the sum of its proper divisors (3831).

3030421 is a wasteful number, since it uses less digits than its factorization.

3030421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3830.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 3030421 is about 1740.8104434429. The cubic root of 3030421 is about 144.7108148391.

Adding to 3030421 its reverse (1240303), we get a palindrome (4270724).

The spelling of 3030421 in words is "three million, thirty thousand, four hundred twenty-one".