26367978 has 48 divisors (see below), whose sum is σ = 66074400. Its totient is φ = 6953184.

The previous prime is 26367973. The next prime is 26367983. The reversal of 26367978 is 87976362.

It is an interprime number because it is at equal distance from previous prime (26367973) and next prime (26367983).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26367973) 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, 373 + ... + 7271.

It is an arithmetic number, because the mean of its divisors is an integer number (1376550).

Almost surely, 2^26367978 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26367978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33037200).

26367978 is an abundant number, since it is smaller than the sum of its proper divisors (39706422).

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

26367978 is a wasteful number, since it uses less digits than its factorization.

26367978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6931 (or 6924 counting only the distinct ones).

The product of its digits is 762048, while the sum is 48.

The square root of 26367978 is about 5134.9759493108. The cubic root of 26367978 is about 297.6406716511.

The spelling of 26367978 in words is "twenty-six million, three hundred sixty-seven thousand, nine hundred seventy-eight".