19927942 has 8 divisors (see below), whose sum is σ = 29958696. Its totient is φ = 9941712.

The previous prime is 19927939. The next prime is 19927969. The reversal of 19927942 is 24972991.

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

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, 9988 + ... + 11815.

It is an arithmetic number, because the mean of its divisors is an integer number (3744837).

Almost surely, 2^19927942 is an apocalyptic number.

19927942 is a deficient number, since it is larger than the sum of its proper divisors (10030754).

19927942 is a wasteful number, since it uses less digits than its factorization.

19927942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22262.

The product of its digits is 81648, while the sum is 43.

The square root of 19927942 is about 4464.0723560444. The cubic root of 19927942 is about 271.1153768601.

The spelling of 19927942 in words is "nineteen million, nine hundred twenty-seven thousand, nine hundred forty-two".