26620272 has 80 divisors (see below), whose sum is σ = 87335680. Its totient is φ = 7604928.

The previous prime is 26620261. The next prime is 26620291. The reversal of 26620272 is 27202662.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 15 ways as a sum of consecutive naturals, for example, 1378 + ... + 7425.

It is an arithmetic number, because the mean of its divisors is an integer number (1091696).

Almost surely, 2^26620272 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 26620272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43667840).

26620272 is an abundant number, since it is smaller than the sum of its proper divisors (60715408).

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

26620272 is a wasteful number, since it uses less digits than its factorization.

26620272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8827 (or 8815 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 26620272 is about 5159.4836950997. The cubic root of 26620272 is about 298.5869547939.

The spelling of 26620272 in words is "twenty-six million, six hundred twenty thousand, two hundred seventy-two".