1668368492 has 48 divisors (see below), whose sum is σ = 3633504000. Its totient is φ = 654018624.

The previous prime is 1668368459. The next prime is 1668368501. The reversal of 1668368492 is 2948638661.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38642 + ... + 69497.

It is an arithmetic number, because the mean of its divisors is an integer number (75698000).

Almost surely, 2^1668368492 is an apocalyptic number.

It is an amenable number.

1668368492 is an abundant number, since it is smaller than the sum of its proper divisors (1965135508).

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

1668368492 is a wasteful number, since it uses less digits than its factorization.

1668368492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108198 (or 108196 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 53.

The square root of 1668368492 is about 40845.6667469145. Note that the first 3 decimals coincide. The cubic root of 1668368492 is about 1186.0345116300.

The spelling of 1668368492 in words is "one billion, six hundred sixty-eight million, three hundred sixty-eight thousand, four hundred ninety-two".