1641823908 has 12 divisors (see below), whose sum is σ = 3830922480. Its totient is φ = 547274632.

The previous prime is 1641823901. The next prime is 1641823921. The reversal of 1641823908 is 8093281461.

1641823908 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1641823908.

It is not an unprimeable number, because it can be changed into a prime (1641823901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68409318 + ... + 68409341.

It is an arithmetic number, because the mean of its divisors is an integer number (319243540).

Almost surely, 2^1641823908 is an apocalyptic number.

It is an amenable number.

1641823908 is an abundant number, since it is smaller than the sum of its proper divisors (2189098572).

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

1641823908 is a wasteful number, since it uses less digits than its factorization.

1641823908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136818666 (or 136818664 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 1641823908 is about 40519.4263039348. The cubic root of 1641823908 is about 1179.7107181324.

The spelling of 1641823908 in words is "one billion, six hundred forty-one million, eight hundred twenty-three thousand, nine hundred eight".