26528890 has 16 divisors (see below), whose sum is σ = 49828608. Its totient is φ = 10150096.

The previous prime is 26528861. The next prime is 26528899. The reversal of 26528890 is 9882562.

It is not an unprimeable number, because it can be changed into a prime (26528899) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 57442 + ... + 57901.

It is an arithmetic number, because the mean of its divisors is an integer number (3114288).

Almost surely, 2^26528890 is an apocalyptic number.

26528890 is a deficient number, since it is larger than the sum of its proper divisors (23299718).

26528890 is a wasteful number, since it uses less digits than its factorization.

26528890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115373.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 26528890 is about 5150.6203509869. The cubic root of 26528890 is about 298.2449002547.

The spelling of 26528890 in words is "twenty-six million, five hundred twenty-eight thousand, eight hundred ninety".