142028224 has 28 divisors (see below), whose sum is σ = 303518824. Its totient is φ = 65551104.

The previous prime is 142028221. The next prime is 142028239. The reversal of 142028224 is 422820241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142028221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84522 + ... + 86185.

It is an arithmetic number, because the mean of its divisors is an integer number (10839958).

Almost surely, 2^142028224 is an apocalyptic number.

It is an amenable number.

142028224 is an abundant number, since it is smaller than the sum of its proper divisors (161490600).

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

142028224 is a wasteful number, since it uses less digits than its factorization.

142028224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170732 (or 170722 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 142028224 is about 11917.5594817060. The cubic root of 142028224 is about 521.7449074851.

Adding to 142028224 its reverse (422820241), we get a palindrome (564848465).

The spelling of 142028224 in words is "one hundred forty-two million, twenty-eight thousand, two hundred twenty-four".