348228769 has 4 divisors (see below), whose sum is σ = 397975744. Its totient is φ = 298481796.

The previous prime is 348228757. The next prime is 348228773. The reversal of 348228769 is 967822843.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 348228769 - 2⁵ = 348228737 is a prime.

It is a super-2 number, since 2×348228769² = 242526551118510722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (348228269) 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, 24873477 + ... + 24873490.

It is an arithmetic number, because the mean of its divisors is an integer number (99493936).

Almost surely, 2^348228769 is an apocalyptic number.

It is an amenable number.

348228769 is a deficient number, since it is larger than the sum of its proper divisors (49746975).

348228769 is an equidigital number, since it uses as much as digits as its factorization.

348228769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49746974.

The product of its digits is 1161216, while the sum is 49.

The square root of 348228769 is about 18660.8887516109. Note that the first 3 decimals coincide. The cubic root of 348228769 is about 703.5390627527.

The spelling of 348228769 in words is "three hundred forty-eight million, two hundred twenty-eight thousand, seven hundred sixty-nine".