1669322072 has 32 divisors (see below), whose sum is σ = 3615379920. Its totient is φ = 714147840.

The previous prime is 1669322071. The next prime is 1669322107. The reversal of 1669322072 is 2702239661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1669322071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556433 + ... + 559424.

Almost surely, 2^1669322072 is an apocalyptic number.

It is an amenable number.

1669322072 is an abundant number, since it is smaller than the sum of its proper divisors (1946057848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1669322072 is a wasteful number, since it uses less digits than its factorization.

1669322072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115891 (or 1115887 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 1669322072 is about 40857.3380434898. The cubic root of 1669322072 is about 1186.2604336186.

The spelling of 1669322072 in words is "one billion, six hundred sixty-nine million, three hundred twenty-two thousand, seventy-two".