20536042 has 8 divisors (see below), whose sum is σ = 30914532. Its totient is φ = 10231200.

The previous prime is 20536013. The next prime is 20536057. The reversal of 20536042 is 24063502.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17816841 + 2719201 = 4221^2 + 1649^2 .

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, 17709 + ... + 18832.

Almost surely, 2^20536042 is an apocalyptic number.

20536042 is a deficient number, since it is larger than the sum of its proper divisors (10378490).

20536042 is a wasteful number, since it uses less digits than its factorization.

20536042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36824.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 20536042 is about 4531.6709942360. The cubic root of 20536042 is about 273.8454827017.

Adding to 20536042 its reverse (24063502), we get a palindrome (44599544).

The spelling of 20536042 in words is "twenty million, five hundred thirty-six thousand, forty-two".