2912440321 has 4 divisors (see below), whose sum is σ = 3328503232. Its totient is φ = 2496377412.

The previous prime is 2912440319. The next prime is 2912440331. The reversal of 2912440321 is 1230442192.

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 2912440321 - 2¹ = 2912440319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2912440321.

It is not an unprimeable number, because it can be changed into a prime (2912440301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208031445 + ... + 208031458.

It is an arithmetic number, because the mean of its divisors is an integer number (832125808).

Almost surely, 2^2912440321 is an apocalyptic number.

It is an amenable number.

2912440321 is a deficient number, since it is larger than the sum of its proper divisors (416062911).

2912440321 is an equidigital number, since it uses as much as digits as its factorization.

2912440321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416062910.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 2912440321 is about 53967.0299442169. The cubic root of 2912440321 is about 1428.0793686777.

The spelling of 2912440321 in words is "two billion, nine hundred twelve million, four hundred forty thousand, three hundred twenty-one".