142068224 has 40 divisors (see below), whose sum is σ = 288731520. Its totient is φ = 69815296.

The previous prime is 142068211. The next prime is 142068229. The reversal of 142068224 is 422860241.

It is not an unprimeable number, because it can be changed into a prime (142068229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27857 + ... + 32559.

It is an arithmetic number, because the mean of its divisors is an integer number (7218288).

Almost surely, 2^142068224 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 142068224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144365760).

142068224 is an abundant number, since it is smaller than the sum of its proper divisors (146663296).

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

142068224 is an frugal number, since it uses more digits than its factorization.

142068224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4780 (or 4764 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 142068224 is about 11919.2375595086. The cubic root of 142068224 is about 521.7938832845.

The spelling of 142068224 in words is "one hundred forty-two million, sixty-eight thousand, two hundred twenty-four".