1669148628 has 48 divisors (see below), whose sum is σ = 4460905344. Its totient is φ = 475845120.

The previous prime is 1669148573. The next prime is 1669148633. The reversal of 1669148628 is 8268419661.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 16648 + ... + 60128.

It is an arithmetic number, because the mean of its divisors is an integer number (92935528).

Almost surely, 2^1669148628 is an apocalyptic number.

It is an amenable number.

1669148628 is an abundant number, since it is smaller than the sum of its proper divisors (2791756716).

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

1669148628 is a wasteful number, since it uses less digits than its factorization.

1669148628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43952 (or 43950 counting only the distinct ones).

The product of its digits is 995328, while the sum is 51.

The square root of 1669148628 is about 40855.2154320596. The cubic root of 1669148628 is about 1186.2193477023.

The spelling of 1669148628 in words is "one billion, six hundred sixty-nine million, one hundred forty-eight thousand, six hundred twenty-eight".