19442066 has 8 divisors (see below), whose sum is σ = 33329280. Its totient is φ = 8332308.

The previous prime is 19442051. The next prime is 19442083. The reversal of 19442066 is 66024491.

It is a happy number.

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

It is a Curzon number.

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, 694346 + ... + 694373.

It is an arithmetic number, because the mean of its divisors is an integer number (4166160).

Almost surely, 2^19442066 is an apocalyptic number.

19442066 is a deficient number, since it is larger than the sum of its proper divisors (13887214).

19442066 is a wasteful number, since it uses less digits than its factorization.

19442066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388728.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 19442066 is about 4409.3158199430. The cubic root of 19442066 is about 268.8938097463.

The spelling of 19442066 in words is "nineteen million, four hundred forty-two thousand, sixty-six".