404342 has 8 divisors (see below), whose sum is σ = 621432. Its totient is φ = 197200.

The previous prime is 404323. The next prime is 404357. The reversal of 404342 is 243404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 404342.

It is a congruent number.

It is an unprimeable 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 3 ways as a sum of consecutive naturals, for example, 2384 + ... + 2547.

It is an arithmetic number, because the mean of its divisors is an integer number (77679).

2⁴⁰⁴³⁴² is an apocalyptic number.

404342 is a deficient number, since it is larger than the sum of its proper divisors (217090).

404342 is a wasteful number, since it uses less digits than its factorization.

404342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4974.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 404342 is about 635.8789192920. The cubic root of 404342 is about 73.9462721763.

Adding to 404342 its reverse (243404), we get a palindrome (647746).

The spelling of 404342 in words is "four hundred four thousand, three hundred forty-two", and thus it is an iban number.