19231116 has 24 divisors (see below), whose sum is σ = 47234880. Its totient is φ = 6072912.

The previous prime is 19231081. The next prime is 19231117. The reversal of 19231116 is 61113291.

It is not an unprimeable number, because it can be changed into a prime (19231117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41946 + ... + 42401.

It is an arithmetic number, because the mean of its divisors is an integer number (1968120).

Almost surely, 2^19231116 is an apocalyptic number.

It is an amenable number.

19231116 is an abundant number, since it is smaller than the sum of its proper divisors (28003764).

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

19231116 is a wasteful number, since it uses less digits than its factorization.

19231116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84373 (or 84371 counting only the distinct ones).

The product of its digits is 324, while the sum is 24.

The square root of 19231116 is about 4385.3296341324. The cubic root of 19231116 is about 267.9177552635.

The spelling of 19231116 in words is "nineteen million, two hundred thirty-one thousand, one hundred sixteen".