26921244 has 48 divisors (see below), whose sum is σ = 73156608. Its totient is φ = 7545408.

The previous prime is 26921239. The next prime is 26921249. The reversal of 26921244 is 44212962.

It is an interprime number because it is at equal distance from previous prime (26921239) and next prime (26921249).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26921249) 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, 1429 + ... + 7475.

It is an arithmetic number, because the mean of its divisors is an integer number (1524096).

Almost surely, 2^26921244 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 26921244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36578304).

26921244 is an abundant number, since it is smaller than the sum of its proper divisors (46235364).

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

26921244 is a wasteful number, since it uses less digits than its factorization.

26921244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6114 (or 6112 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 26921244 is about 5188.5685887343. The cubic root of 26921244 is about 299.7080270426.

The spelling of 26921244 in words is "twenty-six million, nine hundred twenty-one thousand, two hundred forty-four".