11707640 has 32 divisors (see below), whose sum is σ = 30106080. Its totient is φ = 4013952.

The previous prime is 11707639. The next prime is 11707649. The reversal of 11707640 is 4670711.

11707640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11707649) 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, 20627 + ... + 21186.

It is an arithmetic number, because the mean of its divisors is an integer number (940815).

Almost surely, 2^11707640 is an apocalyptic number.

11707640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11707640 is an abundant number, since it is smaller than the sum of its proper divisors (18398440).

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

11707640 is a wasteful number, since it uses less digits than its factorization.

11707640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41831 (or 41827 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 11707640 is about 3421.6428802550. The cubic root of 11707640 is about 227.0682711067.

The spelling of 11707640 in words is "eleven million, seven hundred seven thousand, six hundred forty".