230221420 has 96 divisors (see below), whose sum is σ = 574330176. Its totient is φ = 76416000.

The previous prime is 230221399. The next prime is 230221427. The reversal of 230221420 is 24122032.

It is a junction number, because it is equal to n+sod(n) for n = 230221394 and 230221403.

It is not an unprimeable number, because it can be changed into a prime (230221427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 288462 + ... + 289258.

It is an arithmetic number, because the mean of its divisors is an integer number (5982606).

Almost surely, 2^230221420 is an apocalyptic number.

230221420 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 230221420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287165088).

230221420 is an abundant number, since it is smaller than the sum of its proper divisors (344108756).

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

230221420 is a wasteful number, since it uses less digits than its factorization.

230221420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931 (or 929 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 230221420 is about 15173.0491332494. The cubic root of 230221420 is about 612.8891166210.

Adding to 230221420 its reverse (24122032), we get a palindrome (254343452).

It can be divided in two parts, 23022 and 1420, that added together give a palindrome (24442).

The spelling of 230221420 in words is "two hundred thirty million, two hundred twenty-one thousand, four hundred twenty".