20200042 has 8 divisors (see below), whose sum is σ = 30665376. Its totient is φ = 9978252.

The previous prime is 20200027. The next prime is 20200043. The reversal of 20200042 is 24000202.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (20200043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60678 + ... + 61009.

It is an arithmetic number, because the mean of its divisors is an integer number (3833172).

Almost surely, 2^20200042 is an apocalyptic number.

20200042 is a deficient number, since it is larger than the sum of its proper divisors (10465334).

20200042 is a wasteful number, since it uses less digits than its factorization.

20200042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121772.

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 20200042 is about 4494.4456832851. The cubic root of 20200042 is about 272.3437569097.

Adding to 20200042 its reverse (24000202), we get a palindrome (44200244).

The spelling of 20200042 in words is "twenty million, two hundred thousand, forty-two".