142443200 has 84 divisors (see below), whose sum is σ = 353763072. Its totient is φ = 56448000.

The previous prime is 142443179. The next prime is 142443211. The reversal of 142443200 is 2344241.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 202850 + ... + 203550.

Almost surely, 2^142443200 is an apocalyptic number.

142443200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142443200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176881536).

142443200 is an abundant number, since it is smaller than the sum of its proper divisors (211319872).

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

142443200 is a wasteful number, since it uses less digits than its factorization.

142443200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850 (or 835 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 142443200 is about 11934.9570589927. The cubic root of 142443200 is about 522.2525556211.

Adding to 142443200 its reverse (2344241), we get a palindrome (144787441).

The spelling of 142443200 in words is "one hundred forty-two million, four hundred forty-three thousand, two hundred".