347438 has 32 divisors (see below), whose sum is σ = 677376. Its totient is φ = 129888.

The previous prime is 347437. The next prime is 347443. The reversal of 347438 is 834743.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

Its product of digits (8064) is a multiple of the sum of its prime divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 347438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347437) 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, 4145 + ... + 4227.

It is an arithmetic number, because the mean of its divisors is an integer number (21168).

2³⁴⁷⁴³⁸ is an apocalyptic number.

347438 is a deficient number, since it is larger than the sum of its proper divisors (329938).

347438 is a wasteful number, since it uses less digits than its factorization.

347438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128.

The product of its digits is 8064, while the sum is 29.

The square root of 347438 is about 589.4387160681. The cubic root of 347438 is about 70.3006119490.

The spelling of 347438 in words is "three hundred forty-seven thousand, four hundred thirty-eight".