12653740 has 48 divisors (see below), whose sum is σ = 29302560. Its totient is φ = 4551680.

The previous prime is 12653737. The next prime is 12653759. The reversal of 12653740 is 4735621.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12653699 and 12653708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24606 + ... + 25114.

It is an arithmetic number, because the mean of its divisors is an integer number (610470).

Almost surely, 2^12653740 is an apocalyptic number.

12653740 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 12653740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14651280).

12653740 is an abundant number, since it is smaller than the sum of its proper divisors (16648820).

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

12653740 is a wasteful number, since it uses less digits than its factorization.

12653740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 12653740 is about 3557.2095805561. The cubic root of 12653740 is about 233.0270311925.

It can be divided in two parts, 1265 and 3740, that added together give a palindrome (5005).

The spelling of 12653740 in words is "twelve million, six hundred fifty-three thousand, seven hundred forty".