26228420 has 24 divisors (see below), whose sum is σ = 55437144. Its totient is φ = 10423296.

The previous prime is 26228407. The next prime is 26228429. The reversal of 26228420 is 2482262.

It can be written as a sum of positive squares in 4 ways, for example, as 2238016 + 23990404 = 1496^2 + 4898^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 26228420.

It is not an unprimeable number, because it can be changed into a prime (26228429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1037 + ... + 7316.

It is an arithmetic number, because the mean of its divisors is an integer number (2309881).

Almost surely, 2^26228420 is an apocalyptic number.

26228420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26228420 is an abundant number, since it is smaller than the sum of its proper divisors (29208724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26228420 is a wasteful number, since it uses less digits than its factorization.

26228420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8519 (or 8517 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 26228420 is about 5121.3689576128. The cubic root of 26228420 is about 297.1146341449.

It can be divided in two parts, 262 and 28420, that added together give a palindrome (28682).

The spelling of 26228420 in words is "twenty-six million, two hundred twenty-eight thousand, four hundred twenty".