26139048 has 64 divisors (see below), whose sum is σ = 70896000. Its totient is φ = 7983360.

The previous prime is 26139023. The next prime is 26139059. The reversal of 26139048 is 84093162.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61878 + ... + 62298.

It is an arithmetic number, because the mean of its divisors is an integer number (1107750).

Almost surely, 2^26139048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26139048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35448000).

26139048 is an abundant number, since it is smaller than the sum of its proper divisors (44756952).

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

26139048 is a wasteful number, since it uses less digits than its factorization.

26139048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 26139048 is about 5112.6361106576. The cubic root of 26139048 is about 296.7767824753.

The spelling of 26139048 in words is "twenty-six million, one hundred thirty-nine thousand, forty-eight".