432221320 has 32 divisors (see below), whose sum is σ = 985826520. Its totient is φ = 170519040.

The previous prime is 432221299. The next prime is 432221341. The reversal of 432221320 is 23122234.

It is an interprime number because it is at equal distance from previous prime (432221299) and next prime (432221341).

It can be written as a sum of positive squares in 4 ways, for example, as 403126084 + 29095236 = 20078^2 + 5394^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71091 + ... + 76930.

Almost surely, 2^432221320 is an apocalyptic number.

432221320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

432221320 is an abundant number, since it is smaller than the sum of its proper divisors (553605200).

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

432221320 is a wasteful number, since it uses less digits than its factorization.

432221320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148105 (or 148101 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 432221320 is about 20789.9331408256. The cubic root of 432221320 is about 756.0817031413.

Adding to 432221320 its reverse (23122234), we get a palindrome (455343554).

The spelling of 432221320 in words is "four hundred thirty-two million, two hundred twenty-one thousand, three hundred twenty".