4990239858 has 16 divisors (see below), whose sum is σ = 9984956256. Its totient is φ = 1662667200.

The previous prime is 4990239833. The next prime is 4990239889. The reversal of 4990239858 is 8589320994.

It is a junction number, because it is equal to n+sod(n) for n = 4990239798 and 4990239807.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171943 + ... + 198858.

It is an arithmetic number, because the mean of its divisors is an integer number (624059766).

Almost surely, 2^4990239858 is an apocalyptic number.

4990239858 is an abundant number, since it is smaller than the sum of its proper divisors (4994716398).

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

4990239858 is a wasteful number, since it uses less digits than its factorization.

4990239858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373049.

The product of its (nonzero) digits is 5598720, while the sum is 57.

The square root of 4990239858 is about 70641.6297801799. The cubic root of 4990239858 is about 1708.8625813848.

The spelling of 4990239858 in words is "four billion, nine hundred ninety million, two hundred thirty-nine thousand, eight hundred fifty-eight".