1923408868 has 12 divisors (see below), whose sum is σ = 3366539820. Its totient is φ = 961540352.

The previous prime is 1923408863. The next prime is 1923408887. The reversal of 1923408868 is 8688043291.

It can be written as a sum of positive squares in 2 ways, for example, as 1571171044 + 352237824 = 39638^2 + 18768^2 .

It is not an unprimeable number, because it can be changed into a prime (1923408863) 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, 12433 + ... + 63256.

It is an arithmetic number, because the mean of its divisors is an integer number (280544985).

Almost surely, 2^1923408868 is an apocalyptic number.

It is an amenable number.

1923408868 is a deficient number, since it is larger than the sum of its proper divisors (1443130952).

1923408868 is a wasteful number, since it uses less digits than its factorization.

1923408868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82046 (or 82044 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 49.

The square root of 1923408868 is about 43856.6855564804. The cubic root of 1923408868 is about 1243.6281331467.

The spelling of 1923408868 in words is "one billion, nine hundred twenty-three million, four hundred eight thousand, eight hundred sixty-eight".