19795642 has 8 divisors (see below), whose sum is σ = 29971296. Its totient is φ = 9805212.

The previous prime is 19795637. The next prime is 19795651. The reversal of 19795642 is 24659791.

It is a happy number.

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

It is an unprimeable number.

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, 46038 + ... + 46465.

It is an arithmetic number, because the mean of its divisors is an integer number (3746412).

Almost surely, 2^19795642 is an apocalyptic number.

19795642 is a deficient number, since it is larger than the sum of its proper divisors (10175654).

19795642 is a wasteful number, since it uses less digits than its factorization.

19795642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92612.

The product of its digits is 136080, while the sum is 43.

The square root of 19795642 is about 4449.2293714755. The cubic root of 19795642 is about 270.5140731799.

The spelling of 19795642 in words is "nineteen million, seven hundred ninety-five thousand, six hundred forty-two".