349671242 has 4 divisors (see below), whose sum is σ = 524506866. Its totient is φ = 174835620.

The previous prime is 349671239. The next prime is 349671251. The reversal of 349671242 is 242176943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242176943 = 3187 ⋅75989.

It can be written as a sum of positive squares in only one way, i.e., 278589481 + 71081761 = 16691^2 + 8431^2 .

It is a junction number, because it is equal to n+sod(n) for n = 349671196 and 349671205.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87417809 + ... + 87417812.

Almost surely, 2^349671242 is an apocalyptic number.

349671242 is a deficient number, since it is larger than the sum of its proper divisors (174835624).

349671242 is a wasteful number, since it uses less digits than its factorization.

349671242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174835623.

The product of its digits is 72576, while the sum is 38.

The square root of 349671242 is about 18699.4984424717. The cubic root of 349671242 is about 704.5091511465.

The spelling of 349671242 in words is "three hundred forty-nine million, six hundred seventy-one thousand, two hundred forty-two".