2339680021 has 4 divisors (see below), whose sum is σ = 2673920032. Its totient is φ = 2005440012.

The previous prime is 2339679989. The next prime is 2339680027. The reversal of 2339680021 is 1200869332.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2339680021 - 2⁵ = 2339679989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2339680027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167119995 + ... + 167120008.

It is an arithmetic number, because the mean of its divisors is an integer number (668480008).

Almost surely, 2^2339680021 is an apocalyptic number.

It is an amenable number.

2339680021 is a deficient number, since it is larger than the sum of its proper divisors (334240011).

2339680021 is an equidigital number, since it uses as much as digits as its factorization.

2339680021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334240010.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 2339680021 is about 48370.2390008567. The cubic root of 2339680021 is about 1327.5538774397.

The spelling of 2339680021 in words is "two billion, three hundred thirty-nine million, six hundred eighty thousand, twenty-one".