230290128 has 120 divisors (see below), whose sum is σ = 680018976. Its totient is φ = 75427200.

The previous prime is 230290121. The next prime is 230290129. The reversal of 230290128 is 821092032.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230290121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 236683 + ... + 237653.

Almost surely, 2^230290128 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 230290128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340009488).

230290128 is an abundant number, since it is smaller than the sum of its proper divisors (449728848).

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

230290128 is an equidigital number, since it uses as much as digits as its factorization.

230290128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055 (or 1037 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 230290128 is about 15175.3131104436. The cubic root of 230290128 is about 612.9500814043.

The spelling of 230290128 in words is "two hundred thirty million, two hundred ninety thousand, one hundred twenty-eight".