142234404 has 48 divisors (see below), whose sum is σ = 364174272. Its totient is φ = 42936192.

The previous prime is 142234403. The next prime is 142234409. The reversal of 142234404 is 404432241.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (142234403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334 + ... + 16869.

It is an arithmetic number, because the mean of its divisors is an integer number (7586964).

Almost surely, 2^142234404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142234404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182087136).

142234404 is an abundant number, since it is smaller than the sum of its proper divisors (221939868).

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

142234404 is a wasteful number, since it uses less digits than its factorization.

142234404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17276 (or 17274 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 142234404 is about 11926.2066056228. The cubic root of 142234404 is about 521.9972548703.

Adding to 142234404 its reverse (404432241), we get a palindrome (546666645).

The spelling of 142234404 in words is "one hundred forty-two million, two hundred thirty-four thousand, four hundred four".