1923630312 has 32 divisors (see below), whose sum is σ = 4813663680. Its totient is φ = 640598400.

The previous prime is 1923630299. The next prime is 1923630341. The reversal of 1923630312 is 2130363291.

It is a self number, because there is not a number n which added to its sum of digits gives 1923630312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12189 + ... + 63212.

It is an arithmetic number, because the mean of its divisors is an integer number (150426990).

Almost surely, 2^1923630312 is an apocalyptic number.

1923630312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1923630312 is an abundant number, since it is smaller than the sum of its proper divisors (2890033368).

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

1923630312 is a wasteful number, since it uses less digits than its factorization.

1923630312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76473 (or 76469 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 1923630312 is about 43859.2101160064. The cubic root of 1923630312 is about 1243.6758580350.

The spelling of 1923630312 in words is "one billion, nine hundred twenty-three million, six hundred thirty thousand, three hundred twelve".