230421204 has 72 divisors (see below), whose sum is σ = 633152520. Its totient is φ = 70232832.

The previous prime is 230421203. The next prime is 230421209. The reversal of 230421204 is 402124032.

230421204 = T₂₄₆ + T₂₄₇ + ... + T₁₁₁₇.

It can be written as a sum of positive squares in 4 ways, for example, as 898704 + 229522500 = 948^2 + 15150^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230421203) 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, 48754 + ... + 53270.

It is an arithmetic number, because the mean of its divisors is an integer number (8793785).

Almost surely, 2^230421204 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 230421204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316576260).

230421204 is an abundant number, since it is smaller than the sum of its proper divisors (402731316).

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

230421204 is a wasteful number, since it uses less digits than its factorization.

230421204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4649 (or 4644 counting only the distinct ones).

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

The square root of 230421204 is about 15179.6312208169. The cubic root of 230421204 is about 613.0663518486.

Adding to 230421204 its reverse (402124032), we get a palindrome (632545236).

The spelling of 230421204 in words is "two hundred thirty million, four hundred twenty-one thousand, two hundred four".