26439648 has 48 divisors (see below), whose sum is σ = 71804880. Its totient is φ = 8508416.

The previous prime is 26439643. The next prime is 26439661. The reversal of 26439648 is 84693462.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26439643) 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, 1965 + ... + 7532.

It is an arithmetic number, because the mean of its divisors is an integer number (1495935).

Almost surely, 2^26439648 is an apocalyptic number.

It is an amenable number.

26439648 is an abundant number, since it is smaller than the sum of its proper divisors (45365232).

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

26439648 is a wasteful number, since it uses less digits than its factorization.

26439648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9539 (or 9531 counting only the distinct ones).

The product of its digits is 248832, while the sum is 42.

The square root of 26439648 is about 5141.9498247260. The cubic root of 26439648 is about 297.9100970487.

The spelling of 26439648 in words is "twenty-six million, four hundred thirty-nine thousand, six hundred forty-eight".