19740982 has 8 divisors (see below), whose sum is σ = 30028752. Its totient is φ = 9731400.

The previous prime is 19740971. The next prime is 19740983. The reversal of 19740982 is 28904791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19740983) 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 3 ways as a sum of consecutive naturals, for example, 69369 + ... + 69652.

It is an arithmetic number, because the mean of its divisors is an integer number (3753594).

Almost surely, 2^19740982 is an apocalyptic number.

19740982 is a deficient number, since it is larger than the sum of its proper divisors (10287770).

19740982 is a wasteful number, since it uses less digits than its factorization.

19740982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139094.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 19740982 is about 4443.0824885433. The cubic root of 19740982 is about 270.2648612653.

The spelling of 19740982 in words is "nineteen million, seven hundred forty thousand, nine hundred eighty-two".