19693942 has 8 divisors (see below), whose sum is σ = 29635056. Its totient is φ = 9815592.

The previous prime is 19693907. The next prime is 19693951. The reversal of 19693942 is 24939691.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14898 + ... + 16165.

It is an arithmetic number, because the mean of its divisors is an integer number (3704382).

Almost surely, 2^19693942 is an apocalyptic number.

19693942 is a deficient number, since it is larger than the sum of its proper divisors (9941114).

19693942 is a wasteful number, since it uses less digits than its factorization.

19693942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31382.

The product of its digits is 104976, while the sum is 43.

The square root of 19693942 is about 4437.7857091121. The cubic root of 19693942 is about 270.0500227391.

The spelling of 19693942 in words is "nineteen million, six hundred ninety-three thousand, nine hundred forty-two".