1923689436 has 12 divisors (see below), whose sum is σ = 4488608712. Its totient is φ = 641229808.

The previous prime is 1923689429. The next prime is 1923689483. The reversal of 1923689436 is 6349863291.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80153715 + ... + 80153738.

It is an arithmetic number, because the mean of its divisors is an integer number (374050726).

Almost surely, 2^1923689436 is an apocalyptic number.

It is an amenable number.

1923689436 is an abundant number, since it is smaller than the sum of its proper divisors (2564919276).

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

1923689436 is a wasteful number, since it uses less digits than its factorization.

1923689436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160307460 (or 160307458 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 51.

The square root of 1923689436 is about 43859.8841311739. The cubic root of 1923689436 is about 1243.6885996271.

The spelling of 1923689436 in words is "one billion, nine hundred twenty-three million, six hundred eighty-nine thousand, four hundred thirty-six".