433424420 has 144 divisors (see below), whose sum is σ = 1126137600. Its totient is φ = 138927360.

The previous prime is 433424413. The next prime is 433424429. The reversal of 433424420 is 24424334.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 433424420.

It is not an unprimeable number, because it can be changed into a prime (433424429) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 723281 + ... + 723879.

It is an arithmetic number, because the mean of its divisors is an integer number (7820400).

Almost surely, 2^433424420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 433424420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (563068800).

433424420 is an abundant number, since it is smaller than the sum of its proper divisors (692713180).

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

433424420 is a wasteful number, since it uses less digits than its factorization.

433424420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

The square root of 433424420 is about 20818.8477106683. The cubic root of 433424420 is about 756.7825780197.

Adding to 433424420 its reverse (24424334), we get a palindrome (457848754).

The spelling of 433424420 in words is "four hundred thirty-three million, four hundred twenty-four thousand, four hundred twenty".