239142144 has 72 divisors (see below), whose sum is σ = 642976992. Its totient is φ = 78899200.

The previous prime is 239142139. The next prime is 239142193. The reversal of 239142144 is 441241932.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76027 + ... + 79109.

It is an arithmetic number, because the mean of its divisors is an integer number (8930236).

Almost surely, 2^239142144 is an apocalyptic number.

239142144 is a gapful number since it is divisible by the number (24) 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 239142144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321488496).

239142144 is an abundant number, since it is smaller than the sum of its proper divisors (403834848).

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

239142144 is a wasteful number, since it uses less digits than its factorization.

239142144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3203 (or 3189 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 239142144 is about 15464.2214159006. The cubic root of 239142144 is about 620.7051844425.

The spelling of 239142144 in words is "two hundred thirty-nine million, one hundred forty-two thousand, one hundred forty-four".