230425728 has 128 divisors (see below), whose sum is σ = 680870400. Its totient is φ = 68567040.

The previous prime is 230425703. The next prime is 230425733. The reversal of 230425728 is 827524032.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×230425728² = 106192032248659968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154008 + ... + 155496.

It is an arithmetic number, because the mean of its divisors is an integer number (5319300).

Almost surely, 2^230425728 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 230425728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340435200).

230425728 is an abundant number, since it is smaller than the sum of its proper divisors (450444672).

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

230425728 is a wasteful number, since it uses less digits than its factorization.

230425728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550 (or 1538 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 230425728 is about 15179.7802355634. The cubic root of 230425728 is about 613.0703640575.

The spelling of 230425728 in words is "two hundred thirty million, four hundred twenty-five thousand, seven hundred twenty-eight".