19530912 has 48 divisors (see below), whose sum is σ = 51498720. Its totient is φ = 6481152.

The previous prime is 19530911. The next prime is 19530913. The reversal of 19530912 is 21903591.

It is an interprime number because it is at equal distance from previous prime (19530911) and next prime (19530913).

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 19530912.

It is not an unprimeable number, because it can be changed into a prime (19530911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37083 + ... + 37605.

It is an arithmetic number, because the mean of its divisors is an integer number (1072890).

Almost surely, 2^19530912 is an apocalyptic number.

19530912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19530912 is an abundant number, since it is smaller than the sum of its proper divisors (31967808).

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

19530912 is a wasteful number, since it uses less digits than its factorization.

19530912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925 (or 917 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 19530912 is about 4419.3791419158. The cubic root of 19530912 is about 269.3027827540.

The spelling of 19530912 in words is "nineteen million, five hundred thirty thousand, nine hundred twelve".