142404 has 12 divisors (see below), whose sum is σ = 332304. Its totient is φ = 47464.

The previous prime is 142403. The next prime is 142421. The reversal of 142404 is 404241.

It is a tau number, because it is divible by the number of its divisors (12).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 142404.

It is not an unprimeable number, because it can be changed into a prime (142403) 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, 5922 + ... + 5945.

It is an arithmetic number, because the mean of its divisors is an integer number (27692).

2¹⁴²⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

142404 is an abundant number, since it is smaller than the sum of its proper divisors (189900).

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

142404 is a wasteful number, since it uses less digits than its factorization.

142404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11874 (or 11872 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 142404 is about 377.3645452344. The cubic root of 142404 is about 52.2204643709.

Adding to 142404 its reverse (404241), we get a palindrome (546645).

The spelling of 142404 in words is "one hundred forty-two thousand, four hundred four", and thus it is an iban number.