26228280 has 256 divisors, whose sum is σ = 95800320. Its totient is φ = 5677056.

The previous prime is 26228219. The next prime is 26228291. The reversal of 26228280 is 8282262.

26228280 = T₉₉ + T₁₀₀ + ... + T₅₄₀.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 609939 + ... + 609981.

It is an arithmetic number, because the mean of its divisors is an integer number (374220).

Almost surely, 2^26228280 is an apocalyptic number.

26228280 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 26228280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47900160).

26228280 is an abundant number, since it is smaller than the sum of its proper divisors (69572040).

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

26228280 is a wasteful number, since it uses less digits than its factorization.

26228280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 26228280 is about 5121.3552893741. The cubic root of 26228280 is about 297.1141055056.

The spelling of 26228280 in words is "twenty-six million, two hundred twenty-eight thousand, two hundred eighty".