1669410994 has 8 divisors (see below), whose sum is σ = 2541491568. Its totient is φ = 822247140.

The previous prime is 1669410979. The next prime is 1669410997. The reversal of 1669410994 is 4990149661.

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 (1669410997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6229012 + ... + 6229279.

It is an arithmetic number, because the mean of its divisors is an integer number (317686446).

Almost surely, 2^1669410994 is an apocalyptic number.

1669410994 is a deficient number, since it is larger than the sum of its proper divisors (872080574).

1669410994 is a wasteful number, since it uses less digits than its factorization.

1669410994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12458360.

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 1669410994 is about 40858.4262300936. The cubic root of 1669410994 is about 1186.2814966156.

The spelling of 1669410994 in words is "one billion, six hundred sixty-nine million, four hundred ten thousand, nine hundred ninety-four".