347742 has 12 divisors (see below), whose sum is σ = 753480. Its totient is φ = 115908.

The previous prime is 347731. The next prime is 347747. The reversal of 347742 is 247743.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 347742.

It is not an unprimeable number, because it can be changed into a prime (347747) by changing a digit.

347742 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9642 + ... + 9677.

It is an arithmetic number, because the mean of its divisors is an integer number (62790).

2³⁴⁷⁷⁴² is an apocalyptic number.

347742 is an abundant number, since it is smaller than the sum of its proper divisors (405738).

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

347742 is a wasteful number, since it uses less digits than its factorization.

347742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19327 (or 19324 counting only the distinct ones).

The product of its digits is 4704, while the sum is 27.

The square root of 347742 is about 589.6965321248. The cubic root of 347742 is about 70.3211097605.

Subtracting from 347742 its reverse (247743), we obtain a palindrome (99999).

It can be divided in two parts, 347 and 742, that added together give a square (1089 = 33²).

The spelling of 347742 in words is "three hundred forty-seven thousand, seven hundred forty-two", and thus it is an iban number.