353404 has 12 divisors (see below), whose sum is σ = 630504. Its totient is φ = 173264.

The previous prime is 353401. The next prime is 353411. The reversal of 353404 is 404353.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (353401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 622 + ... + 1045.

It is an arithmetic number, because the mean of its divisors is an integer number (52542).

2³⁵³⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

353404 is a deficient number, since it is larger than the sum of its proper divisors (277100).

353404 is a wasteful number, since it uses less digits than its factorization.

353404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724 (or 1722 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 353404 is about 594.4779222141. The cubic root of 353404 is about 70.7007173427.

Adding to 353404 its reverse (404353), we get a palindrome (757757).

It can be divided in two parts, 35340 and 4, that added together give a square (35344 = 188²).

The spelling of 353404 in words is "three hundred fifty-three thousand, four hundred four".