239888142 has 96 divisors (see below), whose sum is σ = 594642048. Its totient is φ = 72013536.

The previous prime is 239888083. The next prime is 239888149. The reversal of 239888142 is 241888932.

239888142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239888149) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 271233 + ... + 272115.

It is an arithmetic number, because the mean of its divisors is an integer number (6194188).

Almost surely, 2^239888142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 239888142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297321024).

239888142 is an abundant number, since it is smaller than the sum of its proper divisors (354753906).

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

239888142 is a wasteful number, since it uses less digits than its factorization.

239888142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956 (or 944 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 239888142 is about 15488.3227626493. The cubic root of 239888142 is about 621.3499392948.

The spelling of 239888142 in words is "two hundred thirty-nine million, eight hundred eighty-eight thousand, one hundred forty-two".