20126673 has 24 divisors (see below), whose sum is σ = 33441408. Its totient is φ = 11426112.

The previous prime is 20126671. The next prime is 20126693. The reversal of 20126673 is 37662102.

It is a happy number.

It is not a de Polignac number, because 20126673 - 2¹ = 20126671 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20126671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9565 + ... + 11477.

It is an arithmetic number, because the mean of its divisors is an integer number (1393392).

Almost surely, 2^20126673 is an apocalyptic number.

It is an amenable number.

20126673 is a deficient number, since it is larger than the sum of its proper divisors (13314735).

20126673 is a wasteful number, since it uses less digits than its factorization.

20126673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2093 (or 2090 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 20126673 is about 4486.2760726464. The cubic root of 20126673 is about 272.0136283901.

Adding to 20126673 its reverse (37662102), we get a palindrome (57788775).

The spelling of 20126673 in words is "twenty million, one hundred twenty-six thousand, six hundred seventy-three".