348039409 has 8 divisors (see below), whose sum is σ = 350547912. Its totient is φ = 345538560.

The previous prime is 348039389. The next prime is 348039413. The reversal of 348039409 is 904930843.

It can be written as a sum of positive squares in 4 ways, for example, as 122589184 + 225450225 = 11072^2 + 15015^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 348039409 - 2²⁷ = 213821681 is a prime.

It is a super-2 number, since 2×348039409² = 242262860434138562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (348039479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112929 + ... + 115969.

It is an arithmetic number, because the mean of its divisors is an integer number (43818489).

Almost surely, 2^348039409 is an apocalyptic number.

It is an amenable number.

348039409 is a deficient number, since it is larger than the sum of its proper divisors (2508503).

348039409 is a wasteful number, since it uses less digits than its factorization.

348039409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3827.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 348039409 is about 18655.8143483473. The cubic root of 348039409 is about 703.4115160325.

The spelling of 348039409 in words is "three hundred forty-eight million, thirty-nine thousand, four hundred nine".