142044224 has 28 divisors (see below), whose sum is σ = 322137024. Its totient is φ = 60875904.

The previous prime is 142044223. The next prime is 142044229. The reversal of 142044224 is 422440241.

It is a tau number, because it is divible by the number of its divisors (28).

It is a self number, because there is not a number n which added to its sum of digits gives 142044224.

It is not an unprimeable number, because it can be changed into a prime (142044223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158084 + ... + 158979.

Almost surely, 2^142044224 is an apocalyptic number.

142044224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

142044224 is an abundant number, since it is smaller than the sum of its proper divisors (180092800).

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

142044224 is an equidigital number, since it uses as much as digits as its factorization.

142044224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317082 (or 317072 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 142044224 is about 11918.2307411797. The cubic root of 142044224 is about 521.7644989082.

Adding to 142044224 its reverse (422440241), we get a palindrome (564484465).

The spelling of 142044224 in words is "one hundred forty-two million, forty-four thousand, two hundred twenty-four".