236142128 has 40 divisors (see below), whose sum is σ = 488599680. Its totient is φ = 110315520.

The previous prime is 236142119. The next prime is 236142133. The reversal of 236142128 is 821241632.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a self number, because there is not a number n which added to its sum of digits gives 236142128.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6176 + ... + 22592.

It is an arithmetic number, because the mean of its divisors is an integer number (12214992).

Almost surely, 2^236142128 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 236142128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244299840).

236142128 is an abundant number, since it is smaller than the sum of its proper divisors (252457552).

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

236142128 is a wasteful number, since it uses less digits than its factorization.

236142128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16485 (or 16479 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 236142128 is about 15366.9166718636. The cubic root of 236142128 is about 618.0986914858.

The spelling of 236142128 in words is "two hundred thirty-six million, one hundred forty-two thousand, one hundred twenty-eight".