349988534 has 8 divisors (see below), whose sum is σ = 599980368. Its totient is φ = 149995080.

The previous prime is 349988491. The next prime is 349988579. The reversal of 349988534 is 435889943.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12499577 + ... + 12499604.

It is an arithmetic number, because the mean of its divisors is an integer number (74997546).

Almost surely, 2^349988534 is an apocalyptic number.

349988534 is a deficient number, since it is larger than the sum of its proper divisors (249991834).

349988534 is a wasteful number, since it uses less digits than its factorization.

349988534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24999190.

The product of its digits is 3732480, while the sum is 53.

The square root of 349988534 is about 18707.9804896199. The cubic root of 349988534 is about 704.7221774722.

The spelling of 349988534 in words is "three hundred forty-nine million, nine hundred eighty-eight thousand, five hundred thirty-four".