2048631439 has 4 divisors (see below), whose sum is σ = 2054535624. Its totient is φ = 2042727256.

The previous prime is 2048631391. The next prime is 2048631443. The reversal of 2048631439 is 9341368402.

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-2048631439 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 (2048631479) 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, 2951572 + ... + 2952265.

It is an arithmetic number, because the mean of its divisors is an integer number (513633906).

Almost surely, 2^2048631439 is an apocalyptic number.

2048631439 is a deficient number, since it is larger than the sum of its proper divisors (5904185).

2048631439 is an equidigital number, since it uses as much as digits as its factorization.

2048631439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5904184.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 2048631439 is about 45261.8099395064. The cubic root of 2048631439 is about 1270.0513420871.

The spelling of 2048631439 in words is "two billion, forty-eight million, six hundred thirty-one thousand, four hundred thirty-nine".