1668800074 has 8 divisors (see below), whose sum is σ = 2503391940. Its totient is φ = 834336096.

The previous prime is 1668800071. The next prime is 1668800101. The reversal of 1668800074 is 4700088661.

It can be written as a sum of positive squares in 2 ways, for example, as 1437547225 + 231252849 = 37915^2 + 15207^2 .

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 (1668800071) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 13702 + ... + 59374.

Almost surely, 2^1668800074 is an apocalyptic number.

1668800074 is a deficient number, since it is larger than the sum of its proper divisors (834591866).

1668800074 is a wasteful number, since it uses less digits than its factorization.

1668800074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63944.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 1668800074 is about 40850.9494871294. The cubic root of 1668800074 is about 1186.1367726148.

The spelling of 1668800074 in words is "one billion, six hundred sixty-eight million, eight hundred thousand, seventy-four".