26478560 has 48 divisors (see below), whose sum is σ = 63440496. Its totient is φ = 10441728.

The previous prime is 26478559. The next prime is 26478563. The reversal of 26478560 is 6587462.

It is a happy number.

It is a super-2 number, since 2×26478560² = 1402228279347200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26478563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10547 + ... + 12813.

It is an arithmetic number, because the mean of its divisors is an integer number (1321677).

Almost surely, 2^26478560 is an apocalyptic number.

26478560 is a gapful number since it is divisible by the number (20) 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 26478560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31720248).

26478560 is an abundant number, since it is smaller than the sum of its proper divisors (36961936).

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

26478560 is a wasteful number, since it uses less digits than its factorization.

26478560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2355 (or 2347 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 26478560 is about 5145.7322122318. The cubic root of 26478560 is about 298.0561730661.

The spelling of 26478560 in words is "twenty-six million, four hundred seventy-eight thousand, five hundred sixty".