348318440 has 64 divisors (see below), whose sum is σ = 865935360. Its totient is φ = 125424640.

The previous prime is 348318437. The next prime is 348318521. The reversal of 348318440 is 44813843.

It is a self number, because there is not a number n which added to its sum of digits gives 348318440.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4505 + ... + 26775.

It is an arithmetic number, because the mean of its divisors is an integer number (13530240).

Almost surely, 2^348318440 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 348318440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432967680).

348318440 is an abundant number, since it is smaller than the sum of its proper divisors (517616920).

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

348318440 is a wasteful number, since it uses less digits than its factorization.

348318440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22322 (or 22318 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 348318440 is about 18663.2912424363. The cubic root of 348318440 is about 703.5994460817.

The spelling of 348318440 in words is "three hundred forty-eight million, three hundred eighteen thousand, four hundred forty".