347498638440 has 128 divisors (see below), whose sum is σ = 1051699887360. Its totient is φ = 91851669504.

The previous prime is 347498638391. The next prime is 347498638453. The reversal of 347498638440 is 44836894743.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6388237 + ... + 6442403.

It is an arithmetic number, because the mean of its divisors is an integer number (8216405370).

Almost surely, 2^347498638440 is an apocalyptic number.

347498638440 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 347498638440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (525849943680).

347498638440 is an abundant number, since it is smaller than the sum of its proper divisors (704201248920).

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

347498638440 is a wasteful number, since it uses less digits than its factorization.

347498638440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54651 (or 54647 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 60.

The spelling of 347498638440 in words is "three hundred forty-seven billion, four hundred ninety-eight million, six hundred thirty-eight thousand, four hundred forty".