11908540 has 24 divisors (see below), whose sum is σ = 28580832. Its totient is φ = 4082880.

The previous prime is 11908529. The next prime is 11908541. The reversal of 11908540 is 4580911.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 11908499 and 11908508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11908541) 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, 42391 + ... + 42670.

It is an arithmetic number, because the mean of its divisors is an integer number (1190868).

Almost surely, 2^11908540 is an apocalyptic number.

11908540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11908540 is an abundant number, since it is smaller than the sum of its proper divisors (16672292).

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

11908540 is a wasteful number, since it uses less digits than its factorization.

11908540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85077 (or 85075 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 11908540 is about 3450.8752512950. The cubic root of 11908540 is about 228.3597225022.

It can be divided in two parts, 1190 and 8540, that added together give a triangular number (9730 = T₁₃₉).

The spelling of 11908540 in words is "eleven million, nine hundred eight thousand, five hundred forty".