26869668 has 72 divisors (see below), whose sum is σ = 73781568. Its totient is φ = 7455168.

The previous prime is 26869663. The next prime is 26869669. The reversal of 26869668 is 86696862.

It is a self number, because there is not a number n which added to its sum of digits gives 26869668.

It is not an unprimeable number, because it can be changed into a prime (26869663) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155230 + ... + 155402.

It is an arithmetic number, because the mean of its divisors is an integer number (1024744).

Almost surely, 2^26869668 is an apocalyptic number.

26869668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26869668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36890784).

26869668 is an abundant number, since it is smaller than the sum of its proper divisors (46911900).

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

26869668 is a wasteful number, since it uses less digits than its factorization.

26869668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273 (or 228 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 51.

The square root of 26869668 is about 5183.5960490764. The cubic root of 26869668 is about 299.5165100992.

The spelling of 26869668 in words is "twenty-six million, eight hundred sixty-nine thousand, six hundred sixty-eight".