668462000 has 40 divisors (see below), whose sum is σ = 1616345952. Its totient is φ = 267384000.

The previous prime is 668461993. The next prime is 668462027. The reversal of 668462000 is 264866.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165116 + ... + 169115.

Almost surely, 2^668462000 is an apocalyptic number.

It is an amenable number.

668462000 is an abundant number, since it is smaller than the sum of its proper divisors (947883952).

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

668462000 is a wasteful number, since it uses less digits than its factorization.

668462000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334254 (or 334238 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 668462000 is about 25854.6320801515. The cubic root of 668462000 is about 874.3639459155.

The spelling of 668462000 in words is "six hundred sixty-eight million, four hundred sixty-two thousand".