19606940 has 24 divisors (see below), whose sum is σ = 41277600. Its totient is φ = 7823168.

The previous prime is 19606927. The next prime is 19606949. The reversal of 19606940 is 4960691.

It is a self number, because there is not a number n which added to its sum of digits gives 19606940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19606949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9086 + ... + 11034.

It is an arithmetic number, because the mean of its divisors is an integer number (1719900).

Almost surely, 2^19606940 is an apocalyptic number.

19606940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19606940 is an abundant number, since it is smaller than the sum of its proper divisors (21670660).

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

19606940 is a wasteful number, since it uses less digits than its factorization.

19606940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2461 (or 2459 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 19606940 is about 4427.9724479721. The cubic root of 19606940 is about 269.6517687131.

The spelling of 19606940 in words is "nineteen million, six hundred six thousand, nine hundred forty".