642062266 has 8 divisors (see below), whose sum is σ = 994161024. Its totient is φ = 310675260.

The previous prime is 642062263. The next prime is 642062293. The reversal of 642062266 is 662260246.

642062266 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 (642062263) 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, 5177860 + ... + 5177983.

It is an arithmetic number, because the mean of its divisors is an integer number (124270128).

Almost surely, 2^642062266 is an apocalyptic number.

642062266 is a deficient number, since it is larger than the sum of its proper divisors (352098758).

642062266 is a wasteful number, since it uses less digits than its factorization.

642062266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10355876.

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 642062266 is about 25338.9476103488. The cubic root of 642062266 is about 862.6985122011.

It can be divided in two parts, 6420 and 62266, that added together give a palindrome (68686).

The spelling of 642062266 in words is "six hundred forty-two million, sixty-two thousand, two hundred sixty-six".