142425240 has 64 divisors (see below), whose sum is σ = 434302560. Its totient is φ = 37355520.

The previous prime is 142425221. The next prime is 142425271. The reversal of 142425240 is 42524241.

It is a happy number.

142425240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 142425240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2409 + ... + 17048.

Almost surely, 2^142425240 is an apocalyptic number.

142425240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142425240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217151280).

142425240 is an abundant number, since it is smaller than the sum of its proper divisors (291877320).

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

142425240 is a wasteful number, since it uses less digits than its factorization.

142425240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19532 (or 19528 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 142425240 is about 11934.2046236857. The cubic root of 142425240 is about 522.2306052340.

Adding to 142425240 its reverse (42524241), we get a palindrome (184949481).

Subtracting from 142425240 its reverse (42524241), we obtain a palindrome (99900999).

The spelling of 142425240 in words is "one hundred forty-two million, four hundred twenty-five thousand, two hundred forty".