1669473792 has 240 divisors, whose sum is σ = 5589835680. Its totient is φ = 469794816.

The previous prime is 1669473761. The next prime is 1669473811. The reversal of 1669473792 is 2973749661.

It is a happy number.

1669473792 is a `hidden beast` number, since 166 + 9 + 473 + 7 + 9 + 2 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2354334 + ... + 2355042.

It is an arithmetic number, because the mean of its divisors is an integer number (23290982).

Almost surely, 2^1669473792 is an apocalyptic number.

1669473792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1669473792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2794917840).

1669473792 is an abundant number, since it is smaller than the sum of its proper divisors (3920361888).

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

1669473792 is an equidigital number, since it uses as much as digits as its factorization.

1669473792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813 (or 794 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 54.

The square root of 1669473792 is about 40859.1947057208. The cubic root of 1669473792 is about 1186.2963711575.

The spelling of 1669473792 in words is "one billion, six hundred sixty-nine million, four hundred seventy-three thousand, seven hundred ninety-two".