12626140 has 12 divisors (see below), whose sum is σ = 26514936. Its totient is φ = 5050448.

The previous prime is 12626129. The next prime is 12626147. The reversal of 12626140 is 4162621.

It is a super-2 number, since 2×12626140² = 318838822599200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12626147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315634 + ... + 315673.

It is an arithmetic number, because the mean of its divisors is an integer number (2209578).

Almost surely, 2^12626140 is an apocalyptic number.

12626140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12626140 is an abundant number, since it is smaller than the sum of its proper divisors (13888796).

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

12626140 is a wasteful number, since it uses less digits than its factorization.

12626140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631316 (or 631314 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 12626140 is about 3553.3280175070. The cubic root of 12626140 is about 232.8574837480.

Adding to 12626140 its reverse (4162621), we get a palindrome (16788761).

The spelling of 12626140 in words is "twelve million, six hundred twenty-six thousand, one hundred forty".