1668130 has 16 divisors (see below), whose sum is σ = 3032640. Its totient is φ = 660592.

The previous prime is 1668119. The next prime is 1668131. The reversal of 1668130 is 318661.

It is a junction number, because it is equal to n+sod(n) for n = 1668095 and 1668104.

It is not an unprimeable number, because it can be changed into a prime (1668131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291 + ... + 1849.

It is an arithmetic number, because the mean of its divisors is an integer number (189540).

2^1668130 is an apocalyptic number.

1668130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1668130 is a deficient number, since it is larger than the sum of its proper divisors (1364510).

1668130 is a wasteful number, since it uses less digits than its factorization.

1668130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1668130 is about 1291.5610709525. The cubic root of 1668130 is about 118.5977994695.

The spelling of 1668130 in words is "one million, six hundred sixty-eight thousand, one hundred thirty".