26224740 has 72 divisors (see below), whose sum is σ = 80491320. Its totient is φ = 6910464.

The previous prime is 26224721. The next prime is 26224747. The reversal of 26224740 is 4742262.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 580644 + 25644096 = 762^2 + 5064^2 .

It is not an unprimeable number, because it can be changed into a prime (26224747) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15202 + ... + 16838.

It is an arithmetic number, because the mean of its divisors is an integer number (1117935).

Almost surely, 2^26224740 is an apocalyptic number.

26224740 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 26224740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40245660).

26224740 is an abundant number, since it is smaller than the sum of its proper divisors (54266580).

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

26224740 is a wasteful number, since it uses less digits than its factorization.

26224740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741 (or 1736 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 26224740 is about 5121.0096660717. The cubic root of 26224740 is about 297.1007378575.

The spelling of 26224740 in words is "twenty-six million, two hundred twenty-four thousand, seven hundred forty".