230021000 has 96 divisors (see below), whose sum is σ = 591940440. Its totient is φ = 83600000.

The previous prime is 230020997. The next prime is 230021027. The reversal of 230021000 is 120032.

It can be written as a sum of positive squares in 4 ways, for example, as 23639044 + 206381956 = 4862^2 + 14366^2 .

It is a Harshad number since it is a multiple of its sum of digits (8).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120050 + ... + 121950.

Almost surely, 2^230021000 is an apocalyptic number.

230021000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230021000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295970220).

230021000 is an abundant number, since it is smaller than the sum of its proper divisors (361919440).

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

230021000 is a wasteful number, since it uses less digits than its factorization.

230021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944 (or 1919 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 230021000 is about 15166.4432217973. The cubic root of 230021000 is about 612.7112141204.

Adding to 230021000 its reverse (120032), we get a palindrome (230141032).

The spelling of 230021000 in words is "two hundred thirty million, twenty-one thousand".