19723342 has 8 divisors (see below), whose sum is σ = 29801376. Its totient is φ = 9789552.

The previous prime is 19723339. The next prime is 19723343. The reversal of 19723342 is 24332791.

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 (19723343) 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, 35718 + ... + 36265.

It is an arithmetic number, because the mean of its divisors is an integer number (3725172).

Almost surely, 2^19723342 is an apocalyptic number.

19723342 is a deficient number, since it is larger than the sum of its proper divisors (10078034).

19723342 is a wasteful number, since it uses less digits than its factorization.

19723342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72122.

The product of its digits is 9072, while the sum is 31.

The square root of 19723342 is about 4441.0969365687. The cubic root of 19723342 is about 270.1843368536.

The spelling of 19723342 in words is "nineteen million, seven hundred twenty-three thousand, three hundred forty-two".