2445355439 has 4 divisors (see below), whose sum is σ = 2453701656. Its totient is φ = 2437009224.

The previous prime is 2445355421. The next prime is 2445355441. The reversal of 2445355439 is 9345535442.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2445355439 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 2445355439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2445355489) 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, 4172669 + ... + 4173254.

It is an arithmetic number, because the mean of its divisors is an integer number (613425414).

Almost surely, 2^2445355439 is an apocalyptic number.

2445355439 is a deficient number, since it is larger than the sum of its proper divisors (8346217).

2445355439 is an equidigital number, since it uses as much as digits as its factorization.

2445355439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8346216.

The product of its digits is 1296000, while the sum is 44.

The square root of 2445355439 is about 49450.5352751616. The cubic root of 2445355439 is about 1347.2473291652.

The spelling of 2445355439 in words is "two billion, four hundred forty-five million, three hundred fifty-five thousand, four hundred thirty-nine".