348720520 has 16 divisors (see below), whose sum is σ = 784621260. Its totient is φ = 139488192.

The previous prime is 348720517. The next prime is 348720521. The reversal of 348720520 is 25027843.

It can be written as a sum of positive squares in 2 ways, for example, as 338339236 + 10381284 = 18394^2 + 3222^2 .

It is not an unprimeable number, because it can be changed into a prime (348720521) by changing a digit.

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, 4358967 + ... + 4359046.

Almost surely, 2^348720520 is an apocalyptic number.

It is an amenable number.

348720520 is an abundant number, since it is smaller than the sum of its proper divisors (435900740).

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

348720520 is a wasteful number, since it uses less digits than its factorization.

348720520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8718024 (or 8718020 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 348720520 is about 18674.0600834420. The cubic root of 348720520 is about 703.8700743790.

The spelling of 348720520 in words is "three hundred forty-eight million, seven hundred twenty thousand, five hundred twenty".