12526290 has 96 divisors (see below), whose sum is σ = 37964160. Its totient is φ = 2806272.

The previous prime is 12526259. The next prime is 12526291. The reversal of 12526290 is 9262521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12526291) 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 47 ways as a sum of consecutive naturals, for example, 37002 + ... + 37338.

It is an arithmetic number, because the mean of its divisors is an integer number (395460).

It is a vampire number, since it can be written as 2022 ⋅ 6195 (with its own digits).

Almost surely, 2^12526290 is an apocalyptic number.

12526290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12526290 is the 1770-th decagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12526290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18982080).

12526290 is an abundant number, since it is smaller than the sum of its proper divisors (25437870).

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

12526290 is a wasteful number, since it uses less digits than its factorization.

12526290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 12526290 is about 3539.2499205340. The cubic root of 12526290 is about 232.2420309086.

The spelling of 12526290 in words is "twelve million, five hundred twenty-six thousand, two hundred ninety".