26420023 has 32 divisors (see below), whose sum is σ = 33592320. Its totient is φ = 20267520.

The previous prime is 26420011. The next prime is 26420047. The reversal of 26420023 is 32002462.

It is not a de Polignac number, because 26420023 - 2⁹ = 26419511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26420083) 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 31 ways as a sum of consecutive naturals, for example, 372078 + ... + 372148.

It is an arithmetic number, because the mean of its divisors is an integer number (1049760).

Almost surely, 2^26420023 is an apocalyptic number.

26420023 is a deficient number, since it is larger than the sum of its proper divisors (7172297).

26420023 is a wasteful number, since it uses less digits than its factorization.

26420023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 26420023 is about 5140.0411476952. The cubic root of 26420023 is about 297.8363702378.

Adding to 26420023 its reverse (32002462), we get a palindrome (58422485).

The spelling of 26420023 in words is "twenty-six million, four hundred twenty thousand, twenty-three".