26726490 has 128 divisors (see below), whose sum is σ = 82944000. Its totient is φ = 5997888.

The previous prime is 26726467. The next prime is 26726549. The reversal of 26726490 is 9462762.

It is a happy number.

26726490 is a `hidden beast` number, since 2 + 6 + 7 + 2 + 649 + 0 = 666.

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 63 ways as a sum of consecutive naturals, for example, 149221 + ... + 149399.

It is an arithmetic number, because the mean of its divisors is an integer number (648000).

Almost surely, 2^26726490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26726490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41472000).

26726490 is an abundant number, since it is smaller than the sum of its proper divisors (56217510).

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

26726490 is a wasteful number, since it uses less digits than its factorization.

26726490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 275 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 26726490 is about 5169.7669193108. The cubic root of 26726490 is about 298.9835600555.

The spelling of 26726490 in words is "twenty-six million, seven hundred twenty-six thousand, four hundred ninety".