26878122 has 128 divisors (see below), whose sum is σ = 70502400. Its totient is φ = 7527168.

The previous prime is 26878121. The next prime is 26878171. The reversal of 26878122 is 22187862.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (26878121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 401133 + ... + 401199.

It is an arithmetic number, because the mean of its divisors is an integer number (550800).

Almost surely, 2^26878122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26878122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35251200).

26878122 is an abundant number, since it is smaller than the sum of its proper divisors (43624278).

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

26878122 is a wasteful number, since it uses less digits than its factorization.

26878122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 131 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 26878122 is about 5184.4114420057. The cubic root of 26878122 is about 299.5479190850.

It can be divided in two parts, 26878 and 122, that added together give a cube (27000 = 30³).

The spelling of 26878122 in words is "twenty-six million, eight hundred seventy-eight thousand, one hundred twenty-two".