12526420 has 24 divisors (see below), whose sum is σ = 26460000. Its totient is φ = 4981152.

The previous prime is 12526417. The next prime is 12526439. The reversal of 12526420 is 2462521.

It is a super-2 number, since 2×12526420² = 313822396032800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12526391 and 12526400.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1831 + ... + 5329.

It is an arithmetic number, because the mean of its divisors is an integer number (1102500).

Almost surely, 2^12526420 is an apocalyptic number.

12526420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12526420 is an abundant number, since it is smaller than the sum of its proper divisors (13933580).

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

12526420 is a wasteful number, since it uses less digits than its factorization.

12526420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3687 (or 3685 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 12526420 is about 3539.2682859597. The cubic root of 12526420 is about 232.2428343217.

Adding to 12526420 its reverse (2462521), we get a palindrome (14988941).

The spelling of 12526420 in words is "twelve million, five hundred twenty-six thousand, four hundred twenty".