645433202 has 8 divisors (see below), whose sum is σ = 977198256. Its totient is φ = 319700452.

The previous prime is 645433189. The next prime is 645433207. The reversal of 645433202 is 202334546.

645433202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (645433207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1507808 + ... + 1508235.

It is an arithmetic number, because the mean of its divisors is an integer number (122149782).

Almost surely, 2^645433202 is an apocalyptic number.

645433202 is a deficient number, since it is larger than the sum of its proper divisors (331765054).

645433202 is a wasteful number, since it uses less digits than its factorization.

645433202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3016152.

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 645433202 is about 25405.3774229001. The cubic root of 645433202 is about 864.2056489572.

Adding to 645433202 its reverse (202334546), we get a palindrome (847767748).

The spelling of 645433202 in words is "six hundred forty-five million, four hundred thirty-three thousand, two hundred two".