19782136 has 16 divisors (see below), whose sum is σ = 40463640. Its totient is φ = 8991840.

The previous prime is 19782127. The next prime is 19782143. The reversal of 19782136 is 63128791.

It is a junction number, because it is equal to n+sod(n) for n = 19782095 and 19782104.

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, 112311 + ... + 112486.

Almost surely, 2^19782136 is an apocalyptic number.

It is an amenable number.

19782136 is an abundant number, since it is smaller than the sum of its proper divisors (20681504).

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

19782136 is a wasteful number, since it uses less digits than its factorization.

19782136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224814 (or 224810 counting only the distinct ones).

The product of its digits is 18144, while the sum is 37.

The square root of 19782136 is about 4447.7113215675. The cubic root of 19782136 is about 270.4525378464.

It can be divided in two parts, 1978 and 2136, that added together give a palindrome (4114).

The spelling of 19782136 in words is "nineteen million, seven hundred eighty-two thousand, one hundred thirty-six".