668474112 has 144 divisors (see below), whose sum is σ = 1905989120. Its totient is φ = 207360000.

The previous prime is 668474083. The next prime is 668474117. The reversal of 668474112 is 211474866.

It is not an unprimeable number, because it can be changed into a prime (668474117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 889737 + ... + 890487.

Almost surely, 2^668474112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 668474112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (952994560).

668474112 is an abundant number, since it is smaller than the sum of its proper divisors (1237515008).

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

668474112 is a wasteful number, since it uses less digits than its factorization.

668474112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850 (or 836 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 668474112 is about 25854.8663117797. The cubic root of 668474112 is about 874.3692268102.

The spelling of 668474112 in words is "six hundred sixty-eight million, four hundred seventy-four thousand, one hundred twelve".