2330721 has 8 divisors (see below), whose sum is σ = 3452960. Its totient is φ = 1553796.

The previous prime is 2330719. The next prime is 2330753. The reversal of 2330721 is 1270332.

It is not a de Polignac number, because 2330721 - 2¹ = 2330719 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2330694 and 2330703.

It is not an unprimeable number, because it can be changed into a prime (2330761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43135 + ... + 43188.

It is an arithmetic number, because the mean of its divisors is an integer number (431620).

2^2330721 is an apocalyptic number.

It is an amenable number.

2330721 is a deficient number, since it is larger than the sum of its proper divisors (1122239).

2330721 is an equidigital number, since it uses as much as digits as its factorization.

2330721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86332 (or 86326 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 2330721 is about 1526.6699053823. The cubic root of 2330721 is about 132.5857235710.

The spelling of 2330721 in words is "two million, three hundred thirty thousand, seven hundred twenty-one".