26424021 has 8 divisors (see below), whose sum is σ = 37942240. Its totient is φ = 16260912.

The previous prime is 26424019. The next prime is 26424053. The reversal of 26424021 is 12042462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26424021 - 2¹ = 26424019 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 (26424071) 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 7 ways as a sum of consecutive naturals, for example, 338731 + ... + 338808.

It is an arithmetic number, because the mean of its divisors is an integer number (4742780).

Almost surely, 2^26424021 is an apocalyptic number.

It is an amenable number.

26424021 is a deficient number, since it is larger than the sum of its proper divisors (11518219).

26424021 is a wasteful number, since it uses less digits than its factorization.

26424021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677555.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 26424021 is about 5140.4300403760. The cubic root of 26424021 is about 297.8513928055.

Adding to 26424021 its reverse (12042462), we get a palindrome (38466483).

The spelling of 26424021 in words is "twenty-six million, four hundred twenty-four thousand, twenty-one".