11673540 has 36 divisors (see below), whose sum is σ = 35410284. Its totient is φ = 3112896.

The previous prime is 11673523. The next prime is 11673553. The reversal of 11673540 is 4537611.

11673540 is a `hidden beast` number, since 116 + 7 + 3 + 540 = 666.

11673540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6718464 + 4955076 = 2592^2 + 2226^2 .

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

It is a super-2 number, since 2×11673540² = 272543072263200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32247 + ... + 32606.

It is an arithmetic number, because the mean of its divisors is an integer number (983619).

Almost surely, 2^11673540 is an apocalyptic number.

11673540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11673540 is an abundant number, since it is smaller than the sum of its proper divisors (23736744).

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

11673540 is a wasteful number, since it uses less digits than its factorization.

11673540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64868 (or 64863 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 11673540 is about 3416.6562601468. The cubic root of 11673540 is about 226.8476015909.

The spelling of 11673540 in words is "eleven million, six hundred seventy-three thousand, five hundred forty".