230021244 has 18 divisors (see below), whose sum is σ = 581442680. Its totient is φ = 76673736.

The previous prime is 230021227. The next prime is 230021279. The reversal of 230021244 is 442120032.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 3194704 + ... + 3194775.

Almost surely, 2^230021244 is an apocalyptic number.

It is an amenable number.

230021244 is an abundant number, since it is smaller than the sum of its proper divisors (351421436).

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

230021244 is a wasteful number, since it uses less digits than its factorization.

230021244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6389489 (or 6389484 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 230021244 is about 15166.4512658697. The cubic root of 230021244 is about 612.7114307695.

Adding to 230021244 its reverse (442120032), we get a palindrome (672141276).

The spelling of 230021244 in words is "two hundred thirty million, twenty-one thousand, two hundred forty-four".