2939668842 has 64 divisors (see below), whose sum is σ = 6514421760. Its totient is φ = 876907200.

The previous prime is 2939668811. The next prime is 2939668867. The reversal of 2939668842 is 2488669392.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2403043 + ... + 2404265.

It is an arithmetic number, because the mean of its divisors is an integer number (101787840).

Almost surely, 2^2939668842 is an apocalyptic number.

2939668842 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2939668842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3257210880).

2939668842 is an abundant number, since it is smaller than the sum of its proper divisors (3574752918).

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

2939668842 is a wasteful number, since it uses less digits than its factorization.

2939668842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779.

The product of its digits is 8957952, while the sum is 57.

The square root of 2939668842 is about 54218.7130241949. The cubic root of 2939668842 is about 1432.5159616775.

The spelling of 2939668842 in words is "two billion, nine hundred thirty-nine million, six hundred sixty-eight thousand, eight hundred forty-two".