349578 has 12 divisors (see below), whose sum is σ = 757458. Its totient is φ = 116520.

The previous prime is 349567. The next prime is 349579. The reversal of 349578 is 875943.

It can be written as a sum of positive squares in only one way, i.e., 199809 + 149769 = 447^2 + 387^2 .

It is a d-powerful number, because it can be written as 3⁷ + 4⁹ + 5⁷ + 9⁴ + 7² + 8³ .

It is a Curzon number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (349579) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9693 + ... + 9728.

2³⁴⁹⁵⁷⁸ is an apocalyptic number.

349578 is an abundant number, since it is smaller than the sum of its proper divisors (407880).

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

349578 is a wasteful number, since it uses less digits than its factorization.

349578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19429 (or 19426 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 349578 is about 591.2512156436. The cubic root of 349578 is about 70.4446525005. Note that the first 3 decimals are identical.

The spelling of 349578 in words is "three hundred forty-nine thousand, five hundred seventy-eight".