349155685 has 16 divisors (see below), whose sum is σ = 446362560. Its totient is φ = 261429120.

The previous prime is 349155661. The next prime is 349155689. The reversal of 349155685 is 586551943.

It is not a de Polignac number, because 349155685 - 2⁷ = 349155557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349155689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14256 + ... + 30025.

It is an arithmetic number, because the mean of its divisors is an integer number (27897660).

Almost surely, 2^349155685 is an apocalyptic number.

It is an amenable number.

349155685 is a deficient number, since it is larger than the sum of its proper divisors (97206875).

349155685 is a wasteful number, since it uses less digits than its factorization.

349155685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44388.

The product of its digits is 648000, while the sum is 46.

The square root of 349155685 is about 18685.7080411741. The cubic root of 349155685 is about 704.1627369193.

The spelling of 349155685 in words is "three hundred forty-nine million, one hundred fifty-five thousand, six hundred eighty-five".