349741421 has 8 divisors (see below), whose sum is σ = 362317080. Its totient is φ = 337200192.

The previous prime is 349741393. The next prime is 349741463. The reversal of 349741421 is 124147943.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 239785225 + 109956196 = 15485^2 + 10486^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-349741421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349741481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13031 + ... + 29483.

It is an arithmetic number, because the mean of its divisors is an integer number (45289635).

Almost surely, 2^349741421 is an apocalyptic number.

It is an amenable number.

349741421 is a deficient number, since it is larger than the sum of its proper divisors (12575659).

349741421 is a wasteful number, since it uses less digits than its factorization.

349741421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17215.

The product of its digits is 24192, while the sum is 35.

The square root of 349741421 is about 18701.3748425082. The cubic root of 349741421 is about 704.5562796437.

The spelling of 349741421 in words is "three hundred forty-nine million, seven hundred forty-one thousand, four hundred twenty-one".