11783940 has 48 divisors (see below), whose sum is σ = 37709952. Its totient is φ = 2693376.

The previous prime is 11783929. The next prime is 11783951. The reversal of 11783940 is 4938711.

11783940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11783929) and next prime (11783951).

It is a super-2 number, since 2×11783940² = 277722483847200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13609 + ... + 14448.

It is an arithmetic number, because the mean of its divisors is an integer number (785624).

Almost surely, 2^11783940 is an apocalyptic number.

11783940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11783940 is an abundant number, since it is smaller than the sum of its proper divisors (25926012).

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

11783940 is a wasteful number, since it uses less digits than its factorization.

11783940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28076 (or 28074 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 11783940 is about 3432.7743881589. The cubic root of 11783940 is about 227.5604798346.

The spelling of 11783940 in words is "eleven million, seven hundred eighty-three thousand, nine hundred forty".