348043457 has 2 divisors, whose sum is σ = 348043458. Its totient is φ = 348043456.

The previous prime is 348043441. The next prime is 348043513. The reversal of 348043457 is 754340843.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 347114161 + 929296 = 18631^2 + 964^2 .

It is a cyclic number.

It is not a de Polignac number, because 348043457 - 2⁴ = 348043441 is a prime.

It is a super-2 number, since 2×348043457² = 242268495921021698, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 348043457.

It is not a weakly prime, because it can be changed into another prime (348043757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174021728 + 174021729.

It is an arithmetic number, because the mean of its divisors is an integer number (174021729).

Almost surely, 2^348043457 is an apocalyptic number.

It is an amenable number.

348043457 is a deficient number, since it is larger than the sum of its proper divisors (1).

348043457 is an equidigital number, since it uses as much as digits as its factorization.

348043457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 38.

The square root of 348043457 is about 18655.9228396775. The cubic root of 348043457 is about 703.4142431172.

The spelling of 348043457 in words is "three hundred forty-eight million, forty-three thousand, four hundred fifty-seven".