347940 has 36 divisors (see below), whose sum is σ = 1055964. Its totient is φ = 92736.

The previous prime is 347933. The next prime is 347951. The reversal of 347940 is 49743.

It can be written as a sum of positive squares in 2 ways, for example, as 181476 + 166464 = 426^2 + 408^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 347940.

It is an unprimeable number.

347940 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 787 + ... + 1146.

2³⁴⁷⁹⁴⁰ is an apocalyptic number.

347940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

347940 is an abundant number, since it is smaller than the sum of its proper divisors (708024).

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

347940 is a wasteful number, since it uses less digits than its factorization.

347940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1948 (or 1943 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 347940 is about 589.8643911951. The cubic root of 347940 is about 70.3344538853.

The spelling of 347940 in words is "three hundred forty-seven thousand, nine hundred forty".