19943112 has 32 divisors (see below), whose sum is σ = 56980800. Its totient is φ = 5697984.

The previous prime is 19943107. The next prime is 19943117. The reversal of 19943112 is 21134991.

It is an interprime number because it is at equal distance from previous prime (19943107) and next prime (19943117).

It is a self number, because there is not a number n which added to its sum of digits gives 19943112.

It is not an unprimeable number, because it can be changed into a prime (19943117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59187 + ... + 59522.

It is an arithmetic number, because the mean of its divisors is an integer number (1780650).

Almost surely, 2^19943112 is an apocalyptic number.

19943112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19943112 is an abundant number, since it is smaller than the sum of its proper divisors (37037688).

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

19943112 is a wasteful number, since it uses less digits than its factorization.

19943112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118725 (or 118721 counting only the distinct ones).

The product of its digits is 1944, while the sum is 30.

The square root of 19943112 is about 4465.7711540114. The cubic root of 19943112 is about 271.1841542765.

The spelling of 19943112 in words is "nineteen million, nine hundred forty-three thousand, one hundred twelve".