347900239728 has 200 divisors, whose sum is σ = 1068308686368. Its totient is φ = 108924715008.

The previous prime is 347900239693. The next prime is 347900239769. The reversal of 347900239728 is 827932009743.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11066400 + ... + 11097792.

Almost surely, 2^347900239728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 347900239728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534154343184).

347900239728 is an abundant number, since it is smaller than the sum of its proper divisors (720408446640).

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

347900239728 is a wasteful number, since it uses less digits than its factorization.

347900239728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31933 (or 31918 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 54.

The spelling of 347900239728 in words is "three hundred forty-seven billion, nine hundred million, two hundred thirty-nine thousand, seven hundred twenty-eight".