2400139799 has 4 divisors (see below), whose sum is σ = 2400258336. Its totient is φ = 2400021264.

The previous prime is 2400139787. The next prime is 2400139811. The reversal of 2400139799 is 9979310042.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (2400139787) and next prime (2400139811).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2400139799 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 (2400139739) 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, 20399 + ... + 72224.

It is an arithmetic number, because the mean of its divisors is an integer number (600064584).

Almost surely, 2^2400139799 is an apocalyptic number.

2400139799 is a deficient number, since it is larger than the sum of its proper divisors (118537).

2400139799 is an equidigital number, since it uses as much as digits as its factorization.

2400139799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118536.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 2400139799 is about 48991.2216524552. The cubic root of 2400139799 is about 1338.8918957865.

The spelling of 2400139799 in words is "two billion, four hundred million, one hundred thirty-nine thousand, seven hundred ninety-nine".