2304021 has 16 divisors (see below), whose sum is σ = 3231360. Its totient is φ = 1458240.

The previous prime is 2304019. The next prime is 2304023. The reversal of 2304021 is 1204032.

It is an interprime number because it is at equal distance from previous prime (2304019) and next prime (2304023).

It is not a de Polignac number, because 2304021 - 2¹ = 2304019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2303988 and 2304006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2304023) 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, 5991 + ... + 6363.

It is an arithmetic number, because the mean of its divisors is an integer number (201960).

2^2304021 is an apocalyptic number.

It is an amenable number.

2304021 is a deficient number, since it is larger than the sum of its proper divisors (927339).

2304021 is a wasteful number, since it uses less digits than its factorization.

2304021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2304021 is about 1517.9001943474. The cubic root of 2304021 is about 132.0774912304.

Adding to 2304021 its reverse (1204032), we get a palindrome (3508053).

The spelling of 2304021 in words is "two million, three hundred four thousand, twenty-one".