20065442 has 8 divisors (see below), whose sum is σ = 30218832. Its totient is φ = 9992500.

The previous prime is 20065439. The next prime is 20065481. The reversal of 20065442 is 24456002.

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

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, 19484 + ... + 20487.

It is an arithmetic number, because the mean of its divisors is an integer number (3777354).

Almost surely, 2^20065442 is an apocalyptic number.

20065442 is a deficient number, since it is larger than the sum of its proper divisors (10153390).

20065442 is a wasteful number, since it uses less digits than its factorization.

20065442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40224.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 20065442 is about 4479.4466176080. The cubic root of 20065442 is about 271.7375008603.

The spelling of 20065442 in words is "twenty million, sixty-five thousand, four hundred forty-two".