19692042 has 16 divisors (see below), whose sum is σ = 39924480. Its totient is φ = 6473952.

The previous prime is 19692011. The next prime is 19692047. The reversal of 19692042 is 24029691.

It is a junction number, because it is equal to n+sod(n) for n = 19691994 and 19692012.

It is not an unprimeable number, because it can be changed into a prime (19692047) by changing a digit.

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, 22042 + ... + 22917.

It is an arithmetic number, because the mean of its divisors is an integer number (2495280).

Almost surely, 2^19692042 is an apocalyptic number.

19692042 is an abundant number, since it is smaller than the sum of its proper divisors (20232438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19692042 is a wasteful number, since it uses less digits than its factorization.

19692042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45037.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 19692042 is about 4437.5716332246. The cubic root of 19692042 is about 270.0413379780.

The spelling of 19692042 in words is "nineteen million, six hundred ninety-two thousand, forty-two".