347482840 has 64 divisors (see below), whose sum is σ = 809948160. Its totient is φ = 134085120.

The previous prime is 347482823. The next prime is 347482841. The reversal of 347482840 is 48284743.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 347482793 and 347482802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347482841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127977 + ... + 130663.

It is an arithmetic number, because the mean of its divisors is an integer number (12655440).

Almost surely, 2^347482840 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 347482840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (404974080).

347482840 is an abundant number, since it is smaller than the sum of its proper divisors (462465320).

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

347482840 is a wasteful number, since it uses less digits than its factorization.

347482840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2812 (or 2808 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 40.

The square root of 347482840 is about 18640.8916095770. The cubic root of 347482840 is about 703.0363612773.

The spelling of 347482840 in words is "three hundred forty-seven million, four hundred eighty-two thousand, eight hundred forty".