349805913 has 8 divisors (see below), whose sum is σ = 476331648. Its totient is φ = 228242064.

The previous prime is 349805909. The next prime is 349805927. The reversal of 349805913 is 319508943.

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

It is not a de Polignac number, because 349805913 - 2² = 349805909 is a prime.

It is not an unprimeable number, because it can be changed into a prime (349805993) 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, 1240306 + ... + 1240587.

It is an arithmetic number, because the mean of its divisors is an integer number (59541456).

Almost surely, 2^349805913 is an apocalyptic number.

It is an amenable number.

349805913 is a deficient number, since it is larger than the sum of its proper divisors (126525735).

349805913 is a wasteful number, since it uses less digits than its factorization.

349805913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480943.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 349805913 is about 18703.0990212852. The cubic root of 349805913 is about 704.5995834945.

The spelling of 349805913 in words is "three hundred forty-nine million, eight hundred five thousand, nine hundred thirteen".