2239487999 has 4 divisors (see below), whose sum is σ = 2559414864. Its totient is φ = 1919561136.

The previous prime is 2239487993. The next prime is 2239488001. The reversal of 2239487999 is 9997849322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9997849322 = 2 ⋅4998924661.

It is a cyclic number.

It is not a de Polignac number, because 2239487999 - 2⁴ = 2239487983 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 (2239487993) 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, 159963422 + ... + 159963435.

It is an arithmetic number, because the mean of its divisors is an integer number (639853716).

Almost surely, 2^2239487999 is an apocalyptic number.

2239487999 is a deficient number, since it is larger than the sum of its proper divisors (319926865).

2239487999 is an equidigital number, since it uses as much as digits as its factorization.

2239487999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319926864.

The product of its digits is 17635968, while the sum is 62.

The square root of 2239487999 is about 47323.2289578807. The cubic root of 2239487999 is about 1308.3268266444.

The spelling of 2239487999 in words is "two billion, two hundred thirty-nine million, four hundred eighty-seven thousand, nine hundred ninety-nine".