11920540 has 12 divisors (see below), whose sum is σ = 25033176. Its totient is φ = 4768208.

The previous prime is 11920529. The next prime is 11920541. The reversal of 11920540 is 4502911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11920541) 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, 297994 + ... + 298033.

It is an arithmetic number, because the mean of its divisors is an integer number (2086098).

Almost surely, 2^11920540 is an apocalyptic number.

11920540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11920540 is an abundant number, since it is smaller than the sum of its proper divisors (13112636).

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

11920540 is a wasteful number, since it uses less digits than its factorization.

11920540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596036 (or 596034 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 11920540 is about 3452.6135028410. The cubic root of 11920540 is about 228.4364012759.

The spelling of 11920540 in words is "eleven million, nine hundred twenty thousand, five hundred forty".