142428 has 48 divisors (see below), whose sum is σ = 395136. Its totient is φ = 39360.

The previous prime is 142427. The next prime is 142433. The reversal of 142428 is 824241.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 142428.

It is not an unprimeable number, because it can be changed into a prime (142421) 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, 1675 + ... + 1757.

It is an arithmetic number, because the mean of its divisors is an integer number (8232).

2¹⁴²⁴²⁸ 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 142428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197568).

142428 is an abundant number, since it is smaller than the sum of its proper divisors (252708).

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

142428 is a wasteful number, since it uses less digits than its factorization.

142428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 112 counting only the distinct ones).

The product of its digits is 512, while the sum is 21.

The square root of 142428 is about 377.3963433845. The cubic root of 142428 is about 52.2233978576.

Adding to 142428 its reverse (824241), we get a palindrome (966669).

It can be divided in two parts, 14 and 2428, that added together give a palindrome (2442).

The spelling of 142428 in words is "one hundred forty-two thousand, four hundred twenty-eight".