19074542 has 8 divisors (see below), whose sum is σ = 29277336. Its totient is φ = 9315432.

The previous prime is 19074529. The next prime is 19074551. The reversal of 19074542 is 24547091.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 19074499 and 19074508.

It is a congruent number.

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, 110813 + ... + 110984.

It is an arithmetic number, because the mean of its divisors is an integer number (3659667).

Almost surely, 2^19074542 is an apocalyptic number.

19074542 is a deficient number, since it is larger than the sum of its proper divisors (10202794).

19074542 is a wasteful number, since it uses less digits than its factorization.

19074542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221842.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 19074542 is about 4367.4411272506. The cubic root of 19074542 is about 267.1886709044.

The spelling of 19074542 in words is "nineteen million, seventy-four thousand, five hundred forty-two".