349708636 has 12 divisors (see below), whose sum is σ = 612198328. Its totient is φ = 174794832.

The previous prime is 349708633. The next prime is 349708643. The reversal of 349708636 is 636807943.

It is a super-2 number, since 2×349708636² = 244592260185960992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349708633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10 + ... + 26446.

Almost surely, 2^349708636 is an apocalyptic number.

It is an amenable number.

349708636 is a deficient number, since it is larger than the sum of its proper divisors (262489692).

349708636 is a wasteful number, since it uses less digits than its factorization.

349708636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29748 (or 29746 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 46.

The square root of 349708636 is about 18700.4982821314. The cubic root of 349708636 is about 704.5342637599.

The spelling of 349708636 in words is "three hundred forty-nine million, seven hundred eight thousand, six hundred thirty-six".