26520490 has 32 divisors (see below), whose sum is σ = 49398480. Its totient is φ = 10243584.

The previous prime is 26520467. The next prime is 26520497. The reversal of 26520490 is 9402562.

It can be written as a sum of positive squares in 8 ways, for example, as 14953689 + 11566801 = 3867^2 + 3401^2 .

It is not an unprimeable number, because it can be changed into a prime (26520497) 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 15 ways as a sum of consecutive naturals, for example, 84574 + ... + 84886.

Almost surely, 2^26520490 is an apocalyptic number.

26520490 is a deficient number, since it is larger than the sum of its proper divisors (22877990).

26520490 is a wasteful number, since it uses less digits than its factorization.

26520490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 26520490 is about 5149.8048506715. The cubic root of 26520490 is about 298.2134185803.

The spelling of 26520490 in words is "twenty-six million, five hundred twenty thousand, four hundred ninety".