349129072 has 10 divisors (see below), whose sum is σ = 676437608. Its totient is φ = 174564528.

The previous prime is 349129061. The next prime is 349129127. The reversal of 349129072 is 270921943.

It is a super-2 number, since 2×349129072² = 243782217831162368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10910268 + ... + 10910299.

Almost surely, 2^349129072 is an apocalyptic number.

It is an amenable number.

349129072 is a deficient number, since it is larger than the sum of its proper divisors (327308536).

349129072 is a wasteful number, since it uses less digits than its factorization.

349129072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21820575 (or 21820569 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 349129072 is about 18684.9959058063. The cubic root of 349129072 is about 704.1448457990.

The spelling of 349129072 in words is "three hundred forty-nine million, one hundred twenty-nine thousand, seventy-two".