2447390399 has 4 divisors (see below), whose sum is σ = 2576200440. Its totient is φ = 2318580360.

The previous prime is 2447390389. The next prime is 2447390401. The reversal of 2447390399 is 9930937442.

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

It is a cyclic number.

It is not a de Polignac number, because 2447390399 - 2¹⁶ = 2447324863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2447390369) 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, 64404992 + ... + 64405029.

It is an arithmetic number, because the mean of its divisors is an integer number (644050110).

Almost surely, 2^2447390399 is an apocalyptic number.

2447390399 is a deficient number, since it is larger than the sum of its proper divisors (128810041).

2447390399 is a wasteful number, since it uses less digits than its factorization.

2447390399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128810040.

The product of its (nonzero) digits is 1469664, while the sum is 50.

The square root of 2447390399 is about 49471.1067088659. The cubic root of 2447390399 is about 1347.6209400575.

The spelling of 2447390399 in words is "two billion, four hundred forty-seven million, three hundred ninety thousand, three hundred ninety-nine".