26698560 has 224 divisors, whose sum is σ = 100949760. Its totient is φ = 5849088.

The previous prime is 26698559. The next prime is 26698601. The reversal of 26698560 is 6589662.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 194812 + ... + 194948.

Almost surely, 2^26698560 is an apocalyptic number.

26698560 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 26698560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50474880).

26698560 is an abundant number, since it is smaller than the sum of its proper divisors (74251200).

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

26698560 is a wasteful number, since it uses less digits than its factorization.

26698560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 26698560 is about 5167.0649308868. The cubic root of 26698560 is about 298.8793747647.

The spelling of 26698560 in words is "twenty-six million, six hundred ninety-eight thousand, five hundred sixty".