142322424 has 64 divisors (see below), whose sum is σ = 370016640. Its totient is φ = 45578880.

The previous prime is 142322399. The next prime is 142322443. The reversal of 142322424 is 424223241.

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

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 142322394 and 142322403.

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, 72739 + ... + 74669.

It is an arithmetic number, because the mean of its divisors is an integer number (5781510).

Almost surely, 2^142322424 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 142322424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185008320).

142322424 is an abundant number, since it is smaller than the sum of its proper divisors (227694216).

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

142322424 is a wasteful number, since it uses less digits than its factorization.

142322424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060 (or 2056 counting only the distinct ones).

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

The square root of 142322424 is about 11929.8962275453. The cubic root of 142322424 is about 522.1049098459.

Adding to 142322424 its reverse (424223241), we get a palindrome (566545665).

The spelling of 142322424 in words is "one hundred forty-two million, three hundred twenty-two thousand, four hundred twenty-four".