26618648 has 16 divisors (see below), whose sum is σ = 57040080. Its totient is φ = 11407968.

The previous prime is 26618633. The next prime is 26618687. The reversal of 26618648 is 84681662.

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 3 ways as a sum of consecutive naturals, for example, 237611 + ... + 237722.

It is an arithmetic number, because the mean of its divisors is an integer number (3565005).

Almost surely, 2^26618648 is an apocalyptic number.

26618648 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

26618648 is an abundant number, since it is smaller than the sum of its proper divisors (30421432).

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

26618648 is a wasteful number, since it uses less digits than its factorization.

26618648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475346 (or 475342 counting only the distinct ones).

The product of its digits is 110592, while the sum is 41.

The square root of 26618648 is about 5159.3263126110. The cubic root of 26618648 is about 298.5808827913.

The spelling of 26618648 in words is "twenty-six million, six hundred eighteen thousand, six hundred forty-eight".