234857142 has 96 divisors (see below), whose sum is σ = 594161568. Its totient is φ = 66382848.

The previous prime is 234857141. The next prime is 234857153. The reversal of 234857142 is 241758432.

It is a happy number.

234857142 is a `hidden beast` number, since 2 + 3 + 48 + 571 + 42 = 666.

234857142 is a modest number, since divided by 857142 gives 234 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 234857097 and 234857106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234857141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 170368 + ... + 171740.

It is an arithmetic number, because the mean of its divisors is an integer number (6189183).

Almost surely, 2^234857142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 234857142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297080784).

234857142 is an abundant number, since it is smaller than the sum of its proper divisors (359304426).

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

234857142 is a wasteful number, since it uses less digits than its factorization.

234857142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454 (or 1451 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 234857142 is about 15325.0494942105. The cubic root of 234857142 is about 616.9755074699.

The spelling of 234857142 in words is "two hundred thirty-four million, eight hundred fifty-seven thousand, one hundred forty-two".