26652220 has 48 divisors (see below), whose sum is σ = 64512000. Its totient is φ = 9059904.

The previous prime is 26652211. The next prime is 26652221. The reversal of 26652220 is 2225662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26652221) 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, 17031 + ... + 18529.

It is an arithmetic number, because the mean of its divisors is an integer number (1344000).

Almost surely, 2^26652220 is an apocalyptic number.

26652220 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 26652220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32256000).

26652220 is an abundant number, since it is smaller than the sum of its proper divisors (37859780).

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

26652220 is a wasteful number, since it uses less digits than its factorization.

26652220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642 (or 1640 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 26652220 is about 5162.5788129577. The cubic root of 26652220 is about 298.7063555577.

Adding to 26652220 its reverse (2225662), we get a palindrome (28877882).

The spelling of 26652220 in words is "twenty-six million, six hundred fifty-two thousand, two hundred twenty".