433223440 has 80 divisors (see below), whose sum is σ = 1107929088. Its totient is φ = 156538368.

The previous prime is 433223429. The next prime is 433223447. The reversal of 433223440 is 44322334.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (433223447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44449 + ... + 53311.

Almost surely, 2^433223440 is an apocalyptic number.

433223440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 433223440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (553964544).

433223440 is an abundant number, since it is smaller than the sum of its proper divisors (674705648).

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

433223440 is a wasteful number, since it uses less digits than its factorization.

433223440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8936 (or 8930 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

The square root of 433223440 is about 20814.0202748052. The cubic root of 433223440 is about 756.6655859360.

Adding to 433223440 its reverse (44322334), we get a palindrome (477545774).

It can be divided in two parts, 4332 and 23440, that added together give a palindrome (27772).

The spelling of 433223440 in words is "four hundred thirty-three million, two hundred twenty-three thousand, four hundred forty".