19973042 has 16 divisors (see below), whose sum is σ = 30393792. Its totient is φ = 9843120.

The previous prime is 19973029. The next prime is 19973059. The reversal of 19973042 is 24037991.

It is a junction number, because it is equal to n+sod(n) for n = 19972993 and 19973011.

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 7 ways as a sum of consecutive naturals, for example, 64067 + ... + 64377.

It is an arithmetic number, because the mean of its divisors is an integer number (1899612).

Almost surely, 2^19973042 is an apocalyptic number.

19973042 is a deficient number, since it is larger than the sum of its proper divisors (10420750).

19973042 is a wasteful number, since it uses less digits than its factorization.

19973042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 19973042 is about 4469.1209426463. The cubic root of 19973042 is about 271.3197480388.

The spelling of 19973042 in words is "nineteen million, nine hundred seventy-three thousand, forty-two".