2732408321 has 8 divisors (see below), whose sum is σ = 2747808360. Its totient is φ = 2717024128.

The previous prime is 2732408267. The next prime is 2732408353. The reversal of 2732408321 is 1238042372.

It can be written as a sum of positive squares in 4 ways, for example, as 667705600 + 2064702721 = 25840^2 + 45439^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2732408321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2732404321) 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, 556445 + ... + 561333.

It is an arithmetic number, because the mean of its divisors is an integer number (343476045).

Almost surely, 2^2732408321 is an apocalyptic number.

It is an amenable number.

2732408321 is a deficient number, since it is larger than the sum of its proper divisors (15400039).

2732408321 is a wasteful number, since it uses less digits than its factorization.

2732408321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7923.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 2732408321 is about 52272.4432277658. The cubic root of 2732408321 is about 1398.0258435477.

The spelling of 2732408321 in words is "two billion, seven hundred thirty-two million, four hundred eight thousand, three hundred twenty-one".