432221403 has 8 divisors (see below), whose sum is σ = 583590400. Its totient is φ = 284500008.

The previous prime is 432221389. The next prime is 432221411. The reversal of 432221403 is 304122234.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 432221403 - 2⁵ = 432221371 is a prime.

It is a super-2 number, since 2×432221403² = 373630682422576818, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 432221403.

It is not an unprimeable number, because it can be changed into a prime (432220403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 911623 + ... + 912096.

It is an arithmetic number, because the mean of its divisors is an integer number (72948800).

Almost surely, 2^432221403 is an apocalyptic number.

432221403 is a deficient number, since it is larger than the sum of its proper divisors (151368997).

432221403 is a wasteful number, since it uses less digits than its factorization.

432221403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823801.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 432221403 is about 20789.9351369840. The cubic root of 432221403 is about 756.0817515384.

Adding to 432221403 its reverse (304122234), we get a palindrome (736343637).

The spelling of 432221403 in words is "four hundred thirty-two million, two hundred twenty-one thousand, four hundred three".