234988728 has 64 divisors (see below), whose sum is σ = 634519200. Its totient is φ = 72092160.

The previous prime is 234988693. The next prime is 234988729. The reversal of 234988728 is 827889432.

It is a super-3 number, since 3×234988728³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234988729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130458 + ... + 132246.

Almost surely, 2^234988728 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 234988728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317259600).

234988728 is an abundant number, since it is smaller than the sum of its proper divisors (399530472).

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

234988728 is a wasteful number, since it uses less digits than its factorization.

234988728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2232 (or 2228 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 51.

The square root of 234988728 is about 15329.3420602451. The cubic root of 234988728 is about 617.0907125132.

The spelling of 234988728 in words is "two hundred thirty-four million, nine hundred eighty-eight thousand, seven hundred twenty-eight".