235258728 has 32 divisors (see below), whose sum is σ = 604044960. Its totient is φ = 76299840.

The previous prime is 235258687. The next prime is 235258747. The reversal of 235258728 is 827852532.

It is a super-3 number, since 3×235258728³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 235258728.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131578 + ... + 133353.

It is an arithmetic number, because the mean of its divisors is an integer number (18876405).

Almost surely, 2^235258728 is an apocalyptic number.

It is an amenable number.

235258728 is an abundant number, since it is smaller than the sum of its proper divisors (368786232).

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

235258728 is a wasteful number, since it uses less digits than its factorization.

235258728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264977 (or 264973 counting only the distinct ones).

The product of its digits is 268800, while the sum is 42.

The square root of 235258728 is about 15338.1461722074. The cubic root of 235258728 is about 617.3269660017.

The spelling of 235258728 in words is "two hundred thirty-five million, two hundred fifty-eight thousand, seven hundred twenty-eight".