142838752 has 96 divisors (see below), whose sum is σ = 334623744. Its totient is φ = 58752000.

The previous prime is 142838737. The next prime is 142838753. The reversal of 142838752 is 257838241.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142838753) 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 15 ways as a sum of consecutive naturals, for example, 945877 + ... + 946027.

It is an arithmetic number, because the mean of its divisors is an integer number (3485664).

Almost surely, 2^142838752 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 142838752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167311872).

142838752 is an abundant number, since it is smaller than the sum of its proper divisors (191784992).

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

142838752 is a wasteful number, since it uses less digits than its factorization.

142838752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 304 counting only the distinct ones).

The product of its digits is 107520, while the sum is 40.

The square root of 142838752 is about 11951.5167238305. The cubic root of 142838752 is about 522.7355250225.

The spelling of 142838752 in words is "one hundred forty-two million, eight hundred thirty-eight thousand, seven hundred fifty-two".