26251420 has 48 divisors (see below), whose sum is σ = 61302528. Its totient is φ = 9377280.

The previous prime is 26251403. The next prime is 26251447. The reversal of 26251420 is 2415262.

It is a junction number, because it is equal to n+sod(n) for n = 26251391 and 26251400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6432 + ... + 9688.

It is an arithmetic number, because the mean of its divisors is an integer number (1277136).

Almost surely, 2^26251420 is an apocalyptic number.

26251420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26251420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30651264).

26251420 is an abundant number, since it is smaller than the sum of its proper divisors (35051108).

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

26251420 is a wasteful number, since it uses less digits than its factorization.

26251420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3310 (or 3308 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 26251420 is about 5123.6139589161. The cubic root of 26251420 is about 297.2014565061.

Adding to 26251420 its reverse (2415262), we get a palindrome (28666682).

The spelling of 26251420 in words is "twenty-six million, two hundred fifty-one thousand, four hundred twenty".