349884388 has 24 divisors (see below), whose sum is σ = 700180992. Its totient is φ = 149862144.

The previous prime is 349884377. The next prime is 349884389. The reversal of 349884388 is 883488943.

It is a super-2 number, since 2×349884388² = 244838169932269088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (349884389) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 72045 + ... + 76747.

It is an arithmetic number, because the mean of its divisors is an integer number (29174208).

Almost surely, 2^349884388 is an apocalyptic number.

It is an amenable number.

349884388 is an abundant number, since it is smaller than the sum of its proper divisors (350296604).

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

349884388 is a wasteful number, since it uses less digits than its factorization.

349884388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7371 (or 7369 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 55.

The square root of 349884388 is about 18705.1968179969. The cubic root of 349884388 is about 704.6522692039.

The spelling of 349884388 in words is "three hundred forty-nine million, eight hundred eighty-four thousand, three hundred eighty-eight".