347478336 has 84 divisors (see below), whose sum is σ = 1032918432. Its totient is φ = 115820928.

The previous prime is 347478301. The next prime is 347478343. The reversal of 347478336 is 633874743.

It is a junction number, because it is equal to n+sod(n) for n = 347478291 and 347478300.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4381 + ... + 26723.

It is an arithmetic number, because the mean of its divisors is an integer number (12296648).

Almost surely, 2^347478336 is an apocalyptic number.

347478336 is a gapful number since it is divisible by the number (36) 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 347478336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (516459216).

347478336 is an abundant number, since it is smaller than the sum of its proper divisors (685440096).

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

347478336 is an equidigital number, since it uses as much as digits as its factorization.

347478336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22370 (or 22348 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 45.

The square root of 347478336 is about 18640.7707995136. The cubic root of 347478336 is about 703.0333237274.

It can be divided in two parts, 3474 and 78336, that added together give a triangular number (81810 = T₄₀₄).

The spelling of 347478336 in words is "three hundred forty-seven million, four hundred seventy-eight thousand, three hundred thirty-six".