142305424 has 40 divisors (see below), whose sum is σ = 287840952. Its totient is φ = 68090880.

The previous prime is 142305413. The next prime is 142305433. The reversal of 142305424 is 424503241.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4665600 + 137639824 = 2160^2 + 11732^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32722 + ... + 36814.

Almost surely, 2^142305424 is an apocalyptic number.

It is an amenable number.

142305424 is an abundant number, since it is smaller than the sum of its proper divisors (145535528).

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

142305424 is a wasteful number, since it uses less digits than its factorization.

142305424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4195 (or 4189 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 142305424 is about 11929.1837105478. The cubic root of 142305424 is about 522.0841210467.

Adding to 142305424 its reverse (424503241), we get a palindrome (566808665).

The spelling of 142305424 in words is "one hundred forty-two million, three hundred five thousand, four hundred twenty-four".