234191728 has 30 divisors (see below), whose sum is σ = 482017016. Its totient is φ = 110205696.

The previous prime is 234191723. The next prime is 234191729. The reversal of 234191728 is 827191432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234191723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20700 + ... + 29947.

Almost surely, 2^234191728 is an apocalyptic number.

It is an amenable number.

234191728 is an abundant number, since it is smaller than the sum of its proper divisors (247825288).

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

234191728 is a wasteful number, since it uses less digits than its factorization.

234191728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50689 (or 50666 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 234191728 is about 15303.3240833487. The cubic root of 234191728 is about 616.3922699666.

The spelling of 234191728 in words is "two hundred thirty-four million, one hundred ninety-one thousand, seven hundred twenty-eight".