432040221 has 24 divisors (see below), whose sum is σ = 672191520. Its totient is φ = 266517216.

The previous prime is 432040201. The next prime is 432040223. The reversal of 432040221 is 122040234.

It is not a de Polignac number, because 432040221 - 2¹⁵ = 432007453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 432040194 and 432040203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (432040223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22026 + ... + 36731.

It is an arithmetic number, because the mean of its divisors is an integer number (28007980).

Almost surely, 2^432040221 is an apocalyptic number.

It is an amenable number.

432040221 is a deficient number, since it is larger than the sum of its proper divisors (240151299).

432040221 is a wasteful number, since it uses less digits than its factorization.

432040221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58825 (or 58822 counting only the distinct ones).

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

The square root of 432040221 is about 20785.5772351888. The cubic root of 432040221 is about 755.9760899887.

Adding to 432040221 its reverse (122040234), we get a palindrome (554080455).

The spelling of 432040221 in words is "four hundred thirty-two million, forty thousand, two hundred twenty-one".