26840022 has 64 divisors (see below), whose sum is σ = 62380800. Its totient is φ = 7620480.

The previous prime is 26839973. The next prime is 26840071. The reversal of 26840022 is 22004862.

It is an interprime number because it is at equal distance from previous prime (26839973) and next prime (26840071).

It is a junction number, because it is equal to n+sod(n) for n = 26839974 and 26840001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70629 + ... + 71007.

It is an arithmetic number, because the mean of its divisors is an integer number (974700).

Almost surely, 2^26840022 is an apocalyptic number.

26840022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 26840022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31190400).

26840022 is an abundant number, since it is smaller than the sum of its proper divisors (35540778).

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

26840022 is a wasteful number, since it uses less digits than its factorization.

26840022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 26840022 is about 5180.7356620465. The cubic root of 26840022 is about 299.4063147901.

Adding to 26840022 its reverse (22004862), we get a palindrome (48844884).

It can be divided in two parts, 26 and 840022, that added together give a palindrome (840048).

The spelling of 26840022 in words is "twenty-six million, eight hundred forty thousand, twenty-two".