348121809 has 48 divisors (see below), whose sum is σ = 593948160. Its totient is φ = 192360960.

The previous prime is 348121793. The next prime is 348121811. The reversal of 348121809 is 908121843.

It is not a de Polignac number, because 348121809 - 2⁴ = 348121793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (348121009) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 262869 + ... + 264189.

It is an arithmetic number, because the mean of its divisors is an integer number (12373920).

Almost surely, 2^348121809 is an apocalyptic number.

It is an amenable number.

348121809 is a deficient number, since it is larger than the sum of its proper divisors (245826351).

348121809 is a wasteful number, since it uses less digits than its factorization.

348121809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470 (or 1467 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 348121809 is about 18658.0226444283. The cubic root of 348121809 is about 703.4670236693.

The spelling of 348121809 in words is "three hundred forty-eight million, one hundred twenty-one thousand, eight hundred nine".