2439900642 has 8 divisors (see below), whose sum is σ = 4879801296. Its totient is φ = 813300212.

The previous prime is 2439900623. The next prime is 2439900649. The reversal of 2439900642 is 2460099342.

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

2439900642 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 2439900642.

It is not an unprimeable number, because it can be changed into a prime (2439900649) 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, 203325048 + ... + 203325059.

It is an arithmetic number, because the mean of its divisors is an integer number (609975162).

Almost surely, 2^2439900642 is an apocalyptic number.

2439900642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2439900642 is a wasteful number, since it uses less digits than its factorization.

2439900642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406650112.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 2439900642 is about 49395.3504087176. The cubic root of 2439900642 is about 1346.2448257065.

Adding to 2439900642 its reverse (2460099342), we get a palindrome (4899999984).

The spelling of 2439900642 in words is "two billion, four hundred thirty-nine million, nine hundred thousand, six hundred forty-two".