668873352 has 32 divisors (see below), whose sum is σ = 1911067200. Its totient is φ = 191106624.

The previous prime is 668873351. The next prime is 668873389. The reversal of 668873352 is 253378866.

668873352 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×668873352² = 894783122031431808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (668873351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1990527 + ... + 1990862.

It is an arithmetic number, because the mean of its divisors is an integer number (59720850).

Almost surely, 2^668873352 is an apocalyptic number.

It is an amenable number.

668873352 is an abundant number, since it is smaller than the sum of its proper divisors (1242193848).

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

668873352 is a wasteful number, since it uses less digits than its factorization.

668873352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3981405 (or 3981401 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 48.

The square root of 668873352 is about 25862.5859495914. The cubic root of 668873352 is about 874.5432618208.

The spelling of 668873352 in words is "six hundred sixty-eight million, eight hundred seventy-three thousand, three hundred fifty-two".