349907855 has 64 divisors (see below), whose sum is σ = 517321728. Its totient is φ = 224040960.

The previous prime is 349907843. The next prime is 349907863. The reversal of 349907855 is 558709943.

It is not a de Polignac number, because 349907855 - 2⁴ = 349907839 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1139612 + ... + 1139918.

It is an arithmetic number, because the mean of its divisors is an integer number (8083152).

Almost surely, 2^349907855 is an apocalyptic number.

349907855 is a deficient number, since it is larger than the sum of its proper divisors (167413873).

349907855 is a wasteful number, since it uses less digits than its factorization.

349907855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416.

The product of its (nonzero) digits is 1360800, while the sum is 50.

The square root of 349907855 is about 18705.8240930465. The cubic root of 349907855 is about 704.6680226982.

The spelling of 349907855 in words is "three hundred forty-nine million, nine hundred seven thousand, eight hundred fifty-five".