19113712 has 20 divisors (see below), whose sum is σ = 39211776. Its totient is φ = 8994560.

The previous prime is 19113673. The next prime is 19113733. The reversal of 19113712 is 21731191.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34864 + ... + 35407.

Almost surely, 2^19113712 is an apocalyptic number.

It is an amenable number.

19113712 is an abundant number, since it is smaller than the sum of its proper divisors (20098064).

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

19113712 is a wasteful number, since it uses less digits than its factorization.

19113712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70296 (or 70290 counting only the distinct ones).

The product of its digits is 378, while the sum is 25.

The square root of 19113712 is about 4371.9231466255. The cubic root of 19113712 is about 267.3714384993.

The spelling of 19113712 in words is "nineteen million, one hundred thirteen thousand, seven hundred twelve".