26023221 has 32 divisors (see below), whose sum is σ = 44391680. Its totient is φ = 14758848.

The previous prime is 26023211. The next prime is 26023313. The reversal of 26023221 is 12232062.

It is not a de Polignac number, because 26023221 - 2⁶ = 26023157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 26023194 and 26023203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26023201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29235 + ... + 30111.

It is an arithmetic number, because the mean of its divisors is an integer number (1387240).

Almost surely, 2^26023221 is an apocalyptic number.

26023221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

26023221 is a deficient number, since it is larger than the sum of its proper divisors (18368459).

26023221 is a wasteful number, since it uses less digits than its factorization.

26023221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050 (or 1044 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 26023221 is about 5101.2960117994. The cubic root of 26023221 is about 296.3377756248.

Adding to 26023221 its reverse (12232062), we get a palindrome (38255283).

It can be divided in two parts, 26023 and 221, that added together give a square (26244 = 162²).

The spelling of 26023221 in words is "twenty-six million, twenty-three thousand, two hundred twenty-one".