1669326048 has 144 divisors (see below), whose sum is σ = 5231706480. Its totient is φ = 501645312.

The previous prime is 1669326031. The next prime is 1669326049. The reversal of 1669326048 is 8406239661.

1669326048 is a `hidden beast` number, since 1 + 6 + 6 + 9 + 32 + 604 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 1669325994 and 1669326012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1669326049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155808 + ... + 166176.

It is an arithmetic number, because the mean of its divisors is an integer number (36331295).

Almost surely, 2^1669326048 is an apocalyptic number.

1669326048 is a gapful number since it is divisible by the number (18) 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 1669326048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2615853240).

1669326048 is an abundant number, since it is smaller than the sum of its proper divisors (3562380432).

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

1669326048 is a wasteful number, since it uses less digits than its factorization.

1669326048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10441 (or 10430 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 1669326048 is about 40857.3867005710. The cubic root of 1669326048 is about 1186.2613754316.

The spelling of 1669326048 in words is "one billion, six hundred sixty-nine million, three hundred twenty-six thousand, forty-eight".