26542660 has 12 divisors (see below), whose sum is σ = 55739628. Its totient is φ = 10617056.

The previous prime is 26542651. The next prime is 26542669. The reversal of 26542660 is 6624562.

It is an interprime number because it is at equal distance from previous prime (26542651) and next prime (26542669).

It can be written as a sum of positive squares in 2 ways, for example, as 2903616 + 23639044 = 1704^2 + 4862^2 .

It is not an unprimeable number, because it can be changed into a prime (26542669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 663547 + ... + 663586.

It is an arithmetic number, because the mean of its divisors is an integer number (4644969).

Almost surely, 2^26542660 is an apocalyptic number.

26542660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26542660 is an abundant number, since it is smaller than the sum of its proper divisors (29196968).

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

26542660 is a wasteful number, since it uses less digits than its factorization.

26542660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327142 (or 1327140 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 26542660 is about 5151.9569097577. The cubic root of 26542660 is about 298.2964933408.

The spelling of 26542660 in words is "twenty-six million, five hundred forty-two thousand, six hundred sixty".