11840440 has 16 divisors (see below), whose sum is σ = 26641080. Its totient is φ = 4736160.

The previous prime is 11840429. The next prime is 11840443. The reversal of 11840440 is 4404811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11840443) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 147966 + ... + 148045.

Almost surely, 2^11840440 is an apocalyptic number.

11840440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11840440 is an abundant number, since it is smaller than the sum of its proper divisors (14800640).

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

11840440 is a wasteful number, since it uses less digits than its factorization.

11840440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296022 (or 296018 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 11840440 is about 3440.9940424244. The cubic root of 11840440 is about 227.9235919201.

The spelling of 11840440 in words is "eleven million, eight hundred forty thousand, four hundred forty".