19708942 has 8 divisors (see below), whose sum is σ = 32251032. Its totient is φ = 8958600.

The previous prime is 19708939. The next prime is 19708943. The reversal of 19708942 is 24980791.

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

It is a junction number, because it is equal to n+sod(n) for n = 19708895 and 19708904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19708943) 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, 447909 + ... + 447952.

It is an arithmetic number, because the mean of its divisors is an integer number (4031379).

Almost surely, 2^19708942 is an apocalyptic number.

19708942 is a deficient number, since it is larger than the sum of its proper divisors (12542090).

19708942 is a wasteful number, since it uses less digits than its factorization.

19708942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895874.

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

The square root of 19708942 is about 4439.4754194612. The cubic root of 19708942 is about 270.1185670381.

The spelling of 19708942 in words is "nineteen million, seven hundred eight thousand, nine hundred forty-two".