433432240 has 80 divisors (see below), whose sum is σ = 1062217728. Its totient is φ = 164153088.

The previous prime is 433432189. The next prime is 433432249. The reversal of 433432240 is 42234334.

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 (433432249) 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, 188377 + ... + 190663.

Almost surely, 2^433432240 is an apocalyptic number.

433432240 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 433432240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (531108864).

433432240 is an abundant number, since it is smaller than the sum of its proper divisors (628785488).

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

433432240 is a wasteful number, since it uses less digits than its factorization.

433432240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426 (or 2420 counting only the distinct ones).

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

The square root of 433432240 is about 20819.0355204078. The cubic root of 433432240 is about 756.7871293739.

Adding to 433432240 its reverse (42234334), we get a palindrome (475666574).

The spelling of 433432240 in words is "four hundred thirty-three million, four hundred thirty-two thousand, two hundred forty".