11671340 has 24 divisors (see below), whose sum is σ = 25356240. Its totient is φ = 4507328.

The previous prime is 11671307. The next prime is 11671343. The reversal of 11671340 is 4317611.

It is not an unprimeable number, because it can be changed into a prime (11671343) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9482 + ... + 10641.

It is an arithmetic number, because the mean of its divisors is an integer number (1056510).

Almost surely, 2^11671340 is an apocalyptic number.

11671340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11671340 is an abundant number, since it is smaller than the sum of its proper divisors (13684900).

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

11671340 is a wasteful number, since it uses less digits than its factorization.

11671340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20161 (or 20159 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 11671340 is about 3416.3342927764. The cubic root of 11671340 is about 226.8333500991.

Adding to 11671340 its reverse (4317611), we get a palindrome (15988951).

The spelling of 11671340 in words is "eleven million, six hundred seventy-one thousand, three hundred forty".