12610840 has 32 divisors (see below), whose sum is σ = 30954960. Its totient is φ = 4585600.

The previous prime is 12610817. The next prime is 12610841. The reversal of 12610840 is 4801621.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12610841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13891 + ... + 14770.

Almost surely, 2^12610840 is an apocalyptic number.

12610840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12610840 is an abundant number, since it is smaller than the sum of its proper divisors (18344120).

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

12610840 is a wasteful number, since it uses less digits than its factorization.

12610840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28683 (or 28679 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 12610840 is about 3551.1744536139. The cubic root of 12610840 is about 232.7633890223.

The spelling of 12610840 in words is "twelve million, six hundred ten thousand, eight hundred forty".