1669041468 has 18 divisors (see below), whose sum is σ = 4218966024. Its totient is φ = 556347144.

The previous prime is 1669041433. The next prime is 1669041469. The reversal of 1669041468 is 8641409661.

1669041468 is a `hidden beast` number, since 1 + 66 + 90 + 41 + 468 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1669041469) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23181096 + ... + 23181167.

Almost surely, 2^1669041468 is an apocalyptic number.

1669041468 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1669041468 is an abundant number, since it is smaller than the sum of its proper divisors (2549924556).

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

1669041468 is a wasteful number, since it uses less digits than its factorization.

1669041468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46362273 (or 46362268 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 1669041468 is about 40853.9039505406. The cubic root of 1669041468 is about 1186.1939619091.

The spelling of 1669041468 in words is "one billion, six hundred sixty-nine million, forty-one thousand, four hundred sixty-eight".