26978448 has 80 divisors (see below), whose sum is σ = 83137536. Its totient is φ = 7370880.

The previous prime is 26978437. The next prime is 26978449. The reversal of 26978448 is 84487962.

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

It is a junction number, because it is equal to n+sod(n) for n = 26978397 and 26978406.

It is not an unprimeable number, because it can be changed into a prime (26978449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5983 + ... + 9473.

Almost surely, 2^26978448 is an apocalyptic number.

26978448 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 26978448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41568768).

26978448 is an abundant number, since it is smaller than the sum of its proper divisors (56159088).

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

26978448 is a wasteful number, since it uses less digits than its factorization.

26978448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3532 (or 3526 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The square root of 26978448 is about 5194.0781665277. The cubic root of 26978448 is about 299.9201565297.

The spelling of 26978448 in words is "twenty-six million, nine hundred seventy-eight thousand, four hundred forty-eight".