12606840 has 96 divisors (see below), whose sum is σ = 42522480. Its totient is φ = 3359232.

The previous prime is 12606827. The next prime is 12606871. The reversal of 12606840 is 4860621.

12606840 is a `hidden beast` number, since 12 + 606 + 8 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9072 + ... + 10368.

Almost surely, 2^12606840 is an apocalyptic number.

12606840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12606840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21261240).

12606840 is an abundant number, since it is smaller than the sum of its proper divisors (29915640).

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

12606840 is a wasteful number, since it uses less digits than its factorization.

12606840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323 (or 1307 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 12606840 is about 3550.6112149882. The cubic root of 12606840 is about 232.7387765458.

It can be divided in two parts, 1260 and 6840, that added together give a square (8100 = 90²).

The spelling of 12606840 in words is "twelve million, six hundred six thousand, eight hundred forty".