2339521645 has 4 divisors (see below), whose sum is σ = 2807425980. Its totient is φ = 1871617312.

The previous prime is 2339521643. The next prime is 2339521651. The reversal of 2339521645 is 5461259332.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 343397961 + 1996123684 = 18531^2 + 44678^2 .

It is a cyclic number.

It is not a de Polignac number, because 2339521645 - 2¹ = 2339521643 is a prime.

It is a super-3 number, since 3×2339521645³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2339521598 and 2339521607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2339521643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233952160 + ... + 233952169.

It is an arithmetic number, because the mean of its divisors is an integer number (701856495).

Almost surely, 2^2339521645 is an apocalyptic number.

It is an amenable number.

2339521645 is a deficient number, since it is larger than the sum of its proper divisors (467904335).

2339521645 is an equidigital number, since it uses as much as digits as its factorization.

2339521645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467904334.

The product of its digits is 194400, while the sum is 40.

The square root of 2339521645 is about 48368.6018507875. The cubic root of 2339521645 is about 1327.5239221445.

The spelling of 2339521645 in words is "two billion, three hundred thirty-nine million, five hundred twenty-one thousand, six hundred forty-five".