1668349094 has 32 divisors (see below), whose sum is σ = 2674788480. Its totient is φ = 777720448.

The previous prime is 1668349061. The next prime is 1668349139. The reversal of 1668349094 is 4909438661.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2841869 + ... + 2842455.

It is an arithmetic number, because the mean of its divisors is an integer number (83587140).

Almost surely, 2^1668349094 is an apocalyptic number.

1668349094 is a deficient number, since it is larger than the sum of its proper divisors (1006439386).

1668349094 is a wasteful number, since it uses less digits than its factorization.

1668349094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 1668349094 is about 40845.4292914152. The cubic root of 1668349094 is about 1186.0299149663.

The spelling of 1668349094 in words is "one billion, six hundred sixty-eight million, three hundred forty-nine thousand, ninety-four".