1669922449 has 8 divisors (see below), whose sum is σ = 1809413312. Its totient is φ = 1532008080.

The previous prime is 1669922437. The next prime is 1669922459. The reversal of 1669922449 is 9442299661.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1669922449 - 2¹⁵ = 1669889681 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1669922396 and 1669922405.

It is not an unprimeable number, because it can be changed into a prime (1669922459) 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, 391917 + ... + 396154.

It is an arithmetic number, because the mean of its divisors is an integer number (226176664).

Almost surely, 2^1669922449 is an apocalyptic number.

It is an amenable number.

1669922449 is a deficient number, since it is larger than the sum of its proper divisors (139490863).

1669922449 is a wasteful number, since it uses less digits than its factorization.

1669922449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788247.

The product of its digits is 1679616, while the sum is 52.

The square root of 1669922449 is about 40864.6846188735. The cubic root of 1669922449 is about 1186.4026306872.

The spelling of 1669922449 in words is "one billion, six hundred sixty-nine million, nine hundred twenty-two thousand, four hundred forty-nine".