19442796 has 12 divisors (see below), whose sum is σ = 45366552. Its totient is φ = 6480928.

The previous prime is 19442779. The next prime is 19442809. The reversal of 19442796 is 69724491.

It is a tau number, because it is divible by the number of its divisors (12).

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, 810105 + ... + 810128.

It is an arithmetic number, because the mean of its divisors is an integer number (3780546).

Almost surely, 2^19442796 is an apocalyptic number.

It is an amenable number.

19442796 is an abundant number, since it is smaller than the sum of its proper divisors (25923756).

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

19442796 is a wasteful number, since it uses less digits than its factorization.

19442796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620240 (or 1620238 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 19442796 is about 4409.3985984485. The cubic root of 19442796 is about 268.8971751299.

The spelling of 19442796 in words is "nineteen million, four hundred forty-two thousand, seven hundred ninety-six".