3447394680 has 128 divisors (see below), whose sum is σ = 10761338880. Its totient is φ = 882524160.

The previous prime is 3447394679. The next prime is 3447394693. The reversal of 3447394680 is 864937443.

It is a super-4 number, since 4×3447394680⁴ (a number of 39 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 468792 + ... + 476088.

It is an arithmetic number, because the mean of its divisors is an integer number (84072960).

Almost surely, 2^3447394680 is an apocalyptic number.

3447394680 is a gapful number since it is divisible by the number (30) 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 3447394680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5380669440).

3447394680 is an abundant number, since it is smaller than the sum of its proper divisors (7313944200).

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

3447394680 is a wasteful number, since it uses less digits than its factorization.

3447394680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7469 (or 7465 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 48.

The square root of 3447394680 is about 58714.5184771194. The cubic root of 3447394680 is about 1510.6493530414.

The spelling of 3447394680 in words is "three billion, four hundred forty-seven million, three hundred ninety-four thousand, six hundred eighty".