349618878 has 48 divisors (see below), whose sum is σ = 875478240. Its totient is φ = 98765568.

The previous prime is 349618859. The next prime is 349618891. The reversal of 349618878 is 878816943.

349618878 is a `hidden beast` number, since 3 + 496 + 1 + 88 + 78 = 666.

349618878 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4375 + ... + 26802.

It is an arithmetic number, because the mean of its divisors is an integer number (18239130).

Almost surely, 2^349618878 is an apocalyptic number.

349618878 is an abundant number, since it is smaller than the sum of its proper divisors (525859362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

349618878 is a wasteful number, since it uses less digits than its factorization.

349618878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31281 (or 31278 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 349618878 is about 18698.0982455436. The cubic root of 349618878 is about 704.4739821512.

The spelling of 349618878 in words is "three hundred forty-nine million, six hundred eighteen thousand, eight hundred seventy-eight".