432042221 has 8 divisors (see below), whose sum is σ = 465438624. Its totient is φ = 398669040.

The previous prime is 432042209. The next prime is 432042227. The reversal of 432042221 is 122240234.

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

It is a cyclic number.

It is not a de Polignac number, because 432042221 - 2⁶ = 432042157 is a prime.

It is a super-2 number, since 2×432042221² = 373320961453225682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 432042193 and 432042202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (432042227) 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, 64010 + ... + 70436.

It is an arithmetic number, because the mean of its divisors is an integer number (58179828).

Almost surely, 2^432042221 is an apocalyptic number.

It is an amenable number.

432042221 is a deficient number, since it is larger than the sum of its proper divisors (33396403).

432042221 is a wasteful number, since it uses less digits than its factorization.

432042221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11611.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 432042221 is about 20785.6253454160. The cubic root of 432042221 is about 755.9772565081.

Adding to 432042221 its reverse (122240234), we get a palindrome (554282455).

The spelling of 432042221 in words is "four hundred thirty-two million, forty-two thousand, two hundred twenty-one".