348646388 has 6 divisors (see below), whose sum is σ = 610131186. Its totient is φ = 174323192.

The previous prime is 348646379. The next prime is 348646453. The reversal of 348646388 is 883646843.

It can be written as a sum of positive squares in only one way, i.e., 327320464 + 21325924 = 18092^2 + 4618^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43580795 + ... + 43580802.

It is an arithmetic number, because the mean of its divisors is an integer number (101688531).

Almost surely, 2^348646388 is an apocalyptic number.

It is an amenable number.

348646388 is a deficient number, since it is larger than the sum of its proper divisors (261484798).

348646388 is a wasteful number, since it uses less digits than its factorization.

348646388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87161601 (or 87161599 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 50.

The square root of 348646388 is about 18672.0750855388. The cubic root of 348646388 is about 703.8201939434.

The spelling of 348646388 in words is "three hundred forty-eight million, six hundred forty-six thousand, three hundred eighty-eight".