349252340 has 24 divisors (see below), whose sum is σ = 735104160. Its totient is φ = 139382048.

The previous prime is 349252331. The next prime is 349252399. The reversal of 349252340 is 43252943.

349252340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 349252297 and 349252306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10850 + ... + 28569.

It is an arithmetic number, because the mean of its divisors is an integer number (30629340).

Almost surely, 2^349252340 is an apocalyptic number.

It is an amenable number.

349252340 is an abundant number, since it is smaller than the sum of its proper divisors (385851820).

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

349252340 is a wasteful number, since it uses less digits than its factorization.

349252340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39871 (or 39869 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 349252340 is about 18688.2941971706. The cubic root of 349252340 is about 704.2277075259.

The spelling of 349252340 in words is "three hundred forty-nine million, two hundred fifty-two thousand, three hundred forty".