19066642 has 8 divisors (see below), whose sum is σ = 32685696. Its totient is φ = 8171412.

The previous prime is 19066627. The next prime is 19066661. The reversal of 19066642 is 24666091.

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 = 19066598 and 19066607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 680938 + ... + 680965.

It is an arithmetic number, because the mean of its divisors is an integer number (4085712).

Almost surely, 2^19066642 is an apocalyptic number.

19066642 is a deficient number, since it is larger than the sum of its proper divisors (13619054).

19066642 is a wasteful number, since it uses less digits than its factorization.

19066642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361912.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 19066642 is about 4366.5366138394. The cubic root of 19066642 is about 267.1517791148.

The spelling of 19066642 in words is "nineteen million, sixty-six thousand, six hundred forty-two".