26440272 has 60 divisors (see below), whose sum is σ = 76395904. Its totient is φ = 8527680.

The previous prime is 26440261. The next prime is 26440289. The reversal of 26440272 is 27204462.

It is a happy number.

It is a super-4 number, since 4×26440272⁴ (a number of 31 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1503 + ... + 7425.

Almost surely, 2^26440272 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 26440272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38197952).

26440272 is an abundant number, since it is smaller than the sum of its proper divisors (49955632).

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

26440272 is a wasteful number, since it uses less digits than its factorization.

26440272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5968 (or 5959 counting only the distinct ones).

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

The square root of 26440272 is about 5142.0105017396. The cubic root of 26440272 is about 297.9124406810.

The spelling of 26440272 in words is "twenty-six million, four hundred forty thousand, two hundred seventy-two".