26918478 has 48 divisors (see below), whose sum is σ = 63398400. Its totient is φ = 8223120.

The previous prime is 26918471. The next prime is 26918491. The reversal of 26918478 is 87481962.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26918471) 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, 9333 + ... + 11871.

It is an arithmetic number, because the mean of its divisors is an integer number (1320800).

Almost surely, 2^26918478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26918478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31699200).

26918478 is an abundant number, since it is smaller than the sum of its proper divisors (36479922).

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

26918478 is a wasteful number, since it uses less digits than its factorization.

26918478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2597 (or 2594 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 26918478 is about 5188.3020343847. The cubic root of 26918478 is about 299.6977622768.

The spelling of 26918478 in words is "twenty-six million, nine hundred eighteen thousand, four hundred seventy-eight".