26669568 has 80 divisors (see below), whose sum is σ = 72182880. Its totient is φ = 8749056.

The previous prime is 26669567. The next prime is 26669609. The reversal of 26669568 is 86596662.

It is a super-2 number, since 2×26669568² = 1422531714613248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (26669561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148903 + ... + 149081.

It is an arithmetic number, because the mean of its divisors is an integer number (902286).

Almost surely, 2^26669568 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 26669568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36091440).

26669568 is an abundant number, since it is smaller than the sum of its proper divisors (45513312).

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

26669568 is an equidigital number, since it uses as much as digits as its factorization.

26669568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 281 counting only the distinct ones).

The product of its digits is 933120, while the sum is 48.

The square root of 26669568 is about 5164.2587076946. The cubic root of 26669568 is about 298.7711510850.

The spelling of 26669568 in words is "twenty-six million, six hundred sixty-nine thousand, five hundred sixty-eight".