11662740 has 36 divisors (see below), whose sum is σ = 35377524. Its totient is φ = 3110016.

The previous prime is 11662711. The next prime is 11662769. The reversal of 11662740 is 4726611.

It is an interprime number because it is at equal distance from previous prime (11662711) and next prime (11662769).

It can be written as a sum of positive squares in 2 ways, for example, as 8225424 + 3437316 = 2868^2 + 1854^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32217 + ... + 32576.

It is an arithmetic number, because the mean of its divisors is an integer number (982709).

Almost surely, 2^11662740 is an apocalyptic number.

11662740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11662740 is an abundant number, since it is smaller than the sum of its proper divisors (23714784).

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

11662740 is a wasteful number, since it uses less digits than its factorization.

11662740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64808 (or 64803 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 11662740 is about 3415.0754018030. The cubic root of 11662740 is about 226.7776225321. Note that the first 3 decimals are identical.

The spelling of 11662740 in words is "eleven million, six hundred sixty-two thousand, seven hundred forty".