20017046 has 16 divisors (see below), whose sum is σ = 34621344. Its totient is φ = 8502144.

The previous prime is 20017043. The next prime is 20017091. The reversal of 20017046 is 64071002.

It is a super-2 number, since 2×20017046² = 801364261132232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20017043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4745 + ... + 7908.

It is an arithmetic number, because the mean of its divisors is an integer number (2163834).

Almost surely, 2^20017046 is an apocalyptic number.

20017046 is a deficient number, since it is larger than the sum of its proper divisors (14604298).

20017046 is a wasteful number, since it uses less digits than its factorization.

20017046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12775.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 20017046 is about 4474.0413498313. The cubic root of 20017046 is about 271.5188563655.

Adding to 20017046 its reverse (64071002), we get a palindrome (84088048).

The spelling of 20017046 in words is "twenty million, seventeen thousand, forty-six".