26852490 has 72 divisors (see below), whose sum is σ = 81228420. Its totient is φ = 6136704.

The previous prime is 26852489. The next prime is 26852509. The reversal of 26852490 is 9425862.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25613721 + 1238769 = 5061^2 + 1113^2 .

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 35 ways as a sum of consecutive naturals, for example, 1366 + ... + 7454.

Almost surely, 2^26852490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26852490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40614210).

26852490 is an abundant number, since it is smaller than the sum of its proper divisors (54375930).

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

26852490 is a wasteful number, since it uses less digits than its factorization.

26852490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6116 (or 6106 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 26852490 is about 5181.9388263468. The cubic root of 26852490 is about 299.4526687021.

The spelling of 26852490 in words is "twenty-six million, eight hundred fifty-two thousand, four hundred ninety".