19706368 has 40 divisors (see below), whose sum is σ = 42966000. Its totient is φ = 8954880.

The previous prime is 19706353. The next prime is 19706369. The reversal of 19706368 is 86360791.

It is a self number, because there is not a number n which added to its sum of digits gives 19706368.

It is not an unprimeable number, because it can be changed into a prime (19706369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3883 + ... + 7381.

It is an arithmetic number, because the mean of its divisors is an integer number (1074150).

Almost surely, 2^19706368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19706368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21483000).

19706368 is an abundant number, since it is smaller than the sum of its proper divisors (23259632).

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

19706368 is an equidigital number, since it uses as much as digits as its factorization.

19706368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3528 (or 3512 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 19706368 is about 4439.1855108792. The cubic root of 19706368 is about 270.1068073089.

It can be divided in two parts, 1970 and 6368, that added together give a palindrome (8338).

The spelling of 19706368 in words is "nineteen million, seven hundred six thousand, three hundred sixty-eight".