433220421 has 8 divisors (see below), whose sum is σ = 587417760. Its totient is φ = 283918352.

The previous prime is 433220419. The next prime is 433220429. The reversal of 433220421 is 124022334.

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 433220421 - 2¹ = 433220419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (433220429) 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, 1223610 + ... + 1223963.

It is an arithmetic number, because the mean of its divisors is an integer number (73427220).

Almost surely, 2^433220421 is an apocalyptic number.

It is an amenable number.

433220421 is a deficient number, since it is larger than the sum of its proper divisors (154197339).

433220421 is a wasteful number, since it uses less digits than its factorization.

433220421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2447635.

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

The square root of 433220421 is about 20813.9477514478. The cubic root of 433220421 is about 756.6638282759.

Adding to 433220421 its reverse (124022334), we get a palindrome (557242755).

It can be divided in two parts, 4332 and 20421, that added together give a triangular number (24753 = T₂₂₂).

The spelling of 433220421 in words is "four hundred thirty-three million, two hundred twenty thousand, four hundred twenty-one".