26421332 has 48 divisors (see below), whose sum is σ = 57189888. Its totient is φ = 10421760.

The previous prime is 26421299. The next prime is 26421337. The reversal of 26421332 is 23312462.

It is a super-3 number, since 3×26421332³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26421298 and 26421307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26421337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21782 + ... + 22962.

It is an arithmetic number, because the mean of its divisors is an integer number (1191456).

Almost surely, 2^26421332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26421332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28594944).

26421332 is an abundant number, since it is smaller than the sum of its proper divisors (30768556).

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

26421332 is a wasteful number, since it uses less digits than its factorization.

26421332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256 (or 1254 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

The square root of 26421332 is about 5140.1684797290. The cubic root of 26421332 is about 297.8412889993.

Adding to 26421332 its reverse (23312462), we get a palindrome (49733794).

The spelling of 26421332 in words is "twenty-six million, four hundred twenty-one thousand, three hundred thirty-two".