349209524 has 24 divisors (see below), whose sum is σ = 621286848. Its totient is φ = 171711680.

The previous prime is 349209521. The next prime is 349209547. The reversal of 349209524 is 425902943.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349209521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131312 + ... + 133944.

It is an arithmetic number, because the mean of its divisors is an integer number (25886952).

Almost surely, 2^349209524 is an apocalyptic number.

It is an amenable number.

349209524 is a deficient number, since it is larger than the sum of its proper divisors (272077324).

349209524 is a wasteful number, since it uses less digits than its factorization.

349209524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3175 (or 3173 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 349209524 is about 18687.1486321482. The cubic root of 349209524 is about 704.1989284815.

It can be divided in two parts, 34920 and 9524, that added together give a palindrome (44444).

The spelling of 349209524 in words is "three hundred forty-nine million, two hundred nine thousand, five hundred twenty-four".