20026923 has 16 divisors (see below), whose sum is σ = 30683136. Its totient is φ = 11381760.

The previous prime is 20026921. The next prime is 20026927. The reversal of 20026923 is 32962002.

It is not a de Polignac number, because 20026923 - 2¹ = 20026921 is a prime.

It is a super-3 number, since 3×20026923³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20026893 and 20026902.

It is not an unprimeable number, because it can be changed into a prime (20026921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1515 + ... + 6507.

It is an arithmetic number, because the mean of its divisors is an integer number (1917696).

Almost surely, 2^20026923 is an apocalyptic number.

20026923 is a deficient number, since it is larger than the sum of its proper divisors (10656213).

20026923 is a wasteful number, since it uses less digits than its factorization.

20026923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5194.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 20026923 is about 4475.1450255830. The cubic root of 20026923 is about 271.5635074889.

Adding to 20026923 its reverse (32962002), we get a palindrome (52988925).

The spelling of 20026923 in words is "twenty million, twenty-six thousand, nine hundred twenty-three".