19006242 has 8 divisors (see below), whose sum is σ = 38012496. Its totient is φ = 6335412.

The previous prime is 19006237. The next prime is 19006249. The reversal of 19006242 is 24260091.

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

19006242 is an admirable number.

It is a super-2 number, since 2×19006242² = 722474469925128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19006249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1583848 + ... + 1583859.

It is an arithmetic number, because the mean of its divisors is an integer number (4751562).

Almost surely, 2^19006242 is an apocalyptic number.

19006242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19006242 is a wasteful number, since it uses less digits than its factorization.

19006242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3167712.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 19006242 is about 4359.6148912490. The cubic root of 19006242 is about 266.8693830115.

The spelling of 19006242 in words is "nineteen million, six thousand, two hundred forty-two".