2439309858 has 16 divisors (see below), whose sum is σ = 4895984736. Its totient is φ = 810209120.

The previous prime is 2439309811. The next prime is 2439309871. The reversal of 2439309858 is 8589039342.

It is a self number, because there is not a number n which added to its sum of digits gives 2439309858.

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, 721716 + ... + 725087.

It is an arithmetic number, because the mean of its divisors is an integer number (305999046).

Almost surely, 2^2439309858 is an apocalyptic number.

2439309858 is an abundant number, since it is smaller than the sum of its proper divisors (2456674878).

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

2439309858 is a wasteful number, since it uses less digits than its factorization.

2439309858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1447089.

The product of its (nonzero) digits is 1866240, while the sum is 51.

The square root of 2439309858 is about 49389.3698886714. The cubic root of 2439309858 is about 1346.1361595186.

The spelling of 2439309858 in words is "two billion, four hundred thirty-nine million, three hundred nine thousand, eight hundred fifty-eight".