347490 has 96 divisors (see below), whose sum is σ = 1100736. Its totient is φ = 77760.

The previous prime is 347489. The next prime is 347509. The reversal of 347490 is 94743.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26724 + ... + 26736.

It is an arithmetic number, because the mean of its divisors is an integer number (11466).

2³⁴⁷⁴⁹⁰ is an apocalyptic number.

347490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 347490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (550368).

347490 is an abundant number, since it is smaller than the sum of its proper divisors (753246).

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

347490 is a wasteful number, since it uses less digits than its factorization.

347490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46 (or 34 counting only the distinct ones).

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

The square root of 347490 is about 589.4828241773. The cubic root of 347490 is about 70.3041190011.

The spelling of 347490 in words is "three hundred forty-seven thousand, four hundred ninety".