349939756 has 48 divisors (see below), whose sum is σ = 661203648. Its totient is φ = 161638400.

The previous prime is 349939753. The next prime is 349939757. The reversal of 349939756 is 657939943.

It is a junction number, because it is equal to n+sod(n) for n = 349939697 and 349939706.

It is not an unprimeable number, because it can be changed into a prime (349939753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 425826 + ... + 426646.

It is an arithmetic number, because the mean of its divisors is an integer number (13775076).

Almost surely, 2^349939756 is an apocalyptic number.

It is an amenable number.

349939756 is a deficient number, since it is larger than the sum of its proper divisors (311263892).

349939756 is a wasteful number, since it uses less digits than its factorization.

349939756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002 (or 1000 counting only the distinct ones).

The product of its digits is 5511240, while the sum is 55.

The square root of 349939756 is about 18706.6767759536. The cubic root of 349939756 is about 704.6894368421.

The spelling of 349939756 in words is "three hundred forty-nine million, nine hundred thirty-nine thousand, seven hundred fifty-six".