433221040 has 40 divisors (see below), whose sum is σ = 1151131680. Its totient is φ = 148532736.

The previous prime is 433221037. The next prime is 433221059. The reversal of 433221040 is 40122334.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 433220999 and 433221017.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386245 + ... + 387364.

It is an arithmetic number, because the mean of its divisors is an integer number (28778292).

Almost surely, 2^433221040 is an apocalyptic number.

433221040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

433221040 is an abundant number, since it is smaller than the sum of its proper divisors (717910640).

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

433221040 is a wasteful number, since it uses less digits than its factorization.

433221040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773629 (or 773623 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 433221040 is about 20813.9626212790. The cubic root of 433221040 is about 756.6641886580.

Adding to 433221040 its reverse (40122334), we get a palindrome (473343374).

The spelling of 433221040 in words is "four hundred thirty-three million, two hundred twenty-one thousand, forty".