19930116 has 12 divisors (see below), whose sum is σ = 46503632. Its totient is φ = 6643368.

The previous prime is 19930111. The next prime is 19930129. The reversal of 19930116 is 61103991.

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

It is not an unprimeable number, because it can be changed into a prime (19930111) 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 3 ways as a sum of consecutive naturals, for example, 830410 + ... + 830433.

Almost surely, 2^19930116 is an apocalyptic number.

It is an amenable number.

19930116 is an abundant number, since it is smaller than the sum of its proper divisors (26573516).

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

19930116 is a wasteful number, since it uses less digits than its factorization.

19930116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660850 (or 1660848 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 30.

The square root of 19930116 is about 4464.3158490411. The cubic root of 19930116 is about 271.1252354362.

The spelling of 19930116 in words is "nineteen million, nine hundred thirty thousand, one hundred sixteen".