433972266 has 64 divisors (see below), whose sum is σ = 1084274688. Its totient is φ = 112736448.

The previous prime is 433972261. The next prime is 433972267. The reversal of 433972266 is 662279334.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (433972261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30651 + ... + 42513.

It is an arithmetic number, because the mean of its divisors is an integer number (16941792).

Almost surely, 2^433972266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 433972266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (542137344).

433972266 is an abundant number, since it is smaller than the sum of its proper divisors (650302422).

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

433972266 is a wasteful number, since it uses less digits than its factorization.

433972266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11955.

The product of its digits is 326592, while the sum is 42.

The square root of 433972266 is about 20832.0010080645. The cubic root of 433972266 is about 757.1013000602.

Subtracting from 433972266 its sum of digits (42), we obtain a square (433972224 = 20832²).

The spelling of 433972266 in words is "four hundred thirty-three million, nine hundred seventy-two thousand, two hundred sixty-six".