4349139720 has 128 divisors (see below), whose sum is σ = 13331952000. Its totient is φ = 1134608384.

The previous prime is 4349139673. The next prime is 4349139721. The reversal of 4349139720 is 279319434.

It is not an unprimeable number, because it can be changed into a prime (4349139721) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2854879 + ... + 2856401.

It is an arithmetic number, because the mean of its divisors is an integer number (104155875).

Almost surely, 2^4349139720 is an apocalyptic number.

4349139720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4349139720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6665976000).

4349139720 is an abundant number, since it is smaller than the sum of its proper divisors (8982812280).

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

4349139720 is a wasteful number, since it uses less digits than its factorization.

4349139720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2039 (or 2035 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 4349139720 is about 65948.0077030383. The cubic root of 4349139720 is about 1632.3042823401.

The spelling of 4349139720 in words is "four billion, three hundred forty-nine million, one hundred thirty-nine thousand, seven hundred twenty".