349749042 has 8 divisors (see below), whose sum is σ = 699498096. Its totient is φ = 116583012.

The previous prime is 349749031. The next prime is 349749079. The reversal of 349749042 is 240947943.

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

349749042 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 349748985 and 349749003.

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, 29145748 + ... + 29145759.

It is an arithmetic number, because the mean of its divisors is an integer number (87437262).

Almost surely, 2^349749042 is an apocalyptic number.

349749042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

349749042 is a wasteful number, since it uses less digits than its factorization.

349749042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58291512.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 349749042 is about 18701.5785964715. The cubic root of 349749042 is about 704.5613971239.

The spelling of 349749042 in words is "three hundred forty-nine million, seven hundred forty-nine thousand, forty-two".