643433362 has 24 divisors (see below), whose sum is σ = 1140119280. Its totient is φ = 269970480.

The previous prime is 643433341. The next prime is 643433369. The reversal of 643433362 is 263334346.

It is not an unprimeable number, because it can be changed into a prime (643433369) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82812 + ... + 90247.

It is an arithmetic number, because the mean of its divisors is an integer number (47504970).

Almost surely, 2^643433362 is an apocalyptic number.

643433362 is a deficient number, since it is larger than the sum of its proper divisors (496685918).

643433362 is a wasteful number, since it uses less digits than its factorization.

643433362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173098 (or 173085 counting only the distinct ones).

The product of its digits is 93312, while the sum is 34.

The square root of 643433362 is about 25365.9882914110. The cubic root of 643433362 is about 863.3121606325.

The spelling of 643433362 in words is "six hundred forty-three million, four hundred thirty-three thousand, three hundred sixty-two".