2042447399 has 8 divisors (see below), whose sum is σ = 2049208368. Its totient is φ = 2035696320.

The previous prime is 2042447377. The next prime is 2042447413. The reversal of 2042447399 is 9937442402.

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

It is a cyclic number.

It is not a de Polignac number, because 2042447399 - 2¹⁶ = 2042381863 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 (2042447339) 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, 734099 + ... + 736875.

It is an arithmetic number, because the mean of its divisors is an integer number (256151046).

Almost surely, 2^2042447399 is an apocalyptic number.

2042447399 is a deficient number, since it is larger than the sum of its proper divisors (6760969).

2042447399 is a wasteful number, since it uses less digits than its factorization.

2042447399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4945.

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 2042447399 is about 45193.4442037781. Note that the first 3 decimals coincide. The cubic root of 2042447399 is about 1268.7721198988.

The spelling of 2042447399 in words is "two billion, forty-two million, four hundred forty-seven thousand, three hundred ninety-nine".