1669430852 has 6 divisors (see below), whose sum is σ = 2921503998. Its totient is φ = 834715424.

The previous prime is 1669430831. The next prime is 1669430863. The reversal of 1669430852 is 2580349661.

It can be written as a sum of positive squares in only one way, i.e., 1048723456 + 620707396 = 32384^2 + 24914^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208678853 + ... + 208678860.

It is an arithmetic number, because the mean of its divisors is an integer number (486917333).

Almost surely, 2^1669430852 is an apocalyptic number.

It is an amenable number.

1669430852 is a deficient number, since it is larger than the sum of its proper divisors (1252073146).

1669430852 is a wasteful number, since it uses less digits than its factorization.

1669430852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417357717 (or 417357715 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 1669430852 is about 40858.6692392202. The cubic root of 1669430852 is about 1186.2862002875.

The spelling of 1669430852 in words is "one billion, six hundred sixty-nine million, four hundred thirty thousand, eight hundred fifty-two".