230091444 has 144 divisors (see below), whose sum is σ = 681670080. Its totient is φ = 64696320.

The previous prime is 230091443. The next prime is 230091457. The reversal of 230091444 is 444190032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230091443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 398484 + ... + 399060.

It is an arithmetic number, because the mean of its divisors is an integer number (4733820).

Almost surely, 2^230091444 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 230091444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340835040).

230091444 is an abundant number, since it is smaller than the sum of its proper divisors (451578636).

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

230091444 is a wasteful number, since it uses less digits than its factorization.

230091444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670 (or 665 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 230091444 is about 15168.7654079032. The cubic root of 230091444 is about 612.7737554006.

The spelling of 230091444 in words is "two hundred thirty million, ninety-one thousand, four hundred forty-four".