349138004 has 24 divisors (see below), whose sum is σ = 619109568. Its totient is φ = 172262720.

The previous prime is 349137991. The next prime is 349138037. The reversal of 349138004 is 400831943.

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, 118817 + ... + 121719.

It is an arithmetic number, because the mean of its divisors is an integer number (25796232).

Almost surely, 2^349138004 is an apocalyptic number.

It is an amenable number.

349138004 is a deficient number, since it is larger than the sum of its proper divisors (269971564).

349138004 is a wasteful number, since it uses less digits than its factorization.

349138004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3295 (or 3293 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 349138004 is about 18685.2349195829. The cubic root of 349138004 is about 704.1508506156.

Adding to 349138004 its reverse (400831943), we get a palindrome (749969947).

The spelling of 349138004 in words is "three hundred forty-nine million, one hundred thirty-eight thousand, four".