348686740 has 12 divisors (see below), whose sum is σ = 732242196. Its totient is φ = 139474688.

The previous prime is 348686717. The next prime is 348686759. The reversal of 348686740 is 47686843.

It can be written as a sum of positive squares in 2 ways, for example, as 47941776 + 300744964 = 6924^2 + 17342^2 .

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 3 ways as a sum of consecutive naturals, for example, 8717149 + ... + 8717188.

It is an arithmetic number, because the mean of its divisors is an integer number (61020183).

Almost surely, 2^348686740 is an apocalyptic number.

It is an amenable number.

348686740 is an abundant number, since it is smaller than the sum of its proper divisors (383555456).

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

348686740 is a wasteful number, since it uses less digits than its factorization.

348686740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17434346 (or 17434344 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 46.

The square root of 348686740 is about 18673.1555983449. The cubic root of 348686740 is about 703.8473460550.

The spelling of 348686740 in words is "three hundred forty-eight million, six hundred eighty-six thousand, seven hundred forty".