26221452 has 48 divisors (see below), whose sum is σ = 63840000. Its totient is φ = 8366400.

The previous prime is 26221411. The next prime is 26221471. The reversal of 26221452 is 25412262.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52299 + ... + 52797.

It is an arithmetic number, because the mean of its divisors is an integer number (1330000).

Almost surely, 2^26221452 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 26221452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31920000).

26221452 is an abundant number, since it is smaller than the sum of its proper divisors (37618548).

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

26221452 is a wasteful number, since it uses less digits than its factorization.

26221452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 684 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 26221452 is about 5120.6886255659. The cubic root of 26221452 is about 297.0883207270.

The spelling of 26221452 in words is "twenty-six million, two hundred twenty-one thousand, four hundred fifty-two".