1669450460 has 24 divisors (see below), whose sum is σ = 3508149120. Its totient is φ = 667341504.

The previous prime is 1669450459. The next prime is 1669450499. The reversal of 1669450460 is 640549661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4706 + ... + 57974.

It is an arithmetic number, because the mean of its divisors is an integer number (146172880).

Almost surely, 2^1669450460 is an apocalyptic number.

1669450460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1669450460 is an abundant number, since it is smaller than the sum of its proper divisors (1838698660).

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

1669450460 is a wasteful number, since it uses less digits than its factorization.

1669450460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54845 (or 54843 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 1669450460 is about 40858.9091875933. The cubic root of 1669450460 is about 1186.2908447064.

The spelling of 1669450460 in words is "one billion, six hundred sixty-nine million, four hundred fifty thousand, four hundred sixty".