11914040 has 32 divisors (see below), whose sum is σ = 27000000. Its totient is φ = 4731264.

The previous prime is 11914039. The next prime is 11914043. The reversal of 11914040 is 4041911.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11914043) 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 7 ways as a sum of consecutive naturals, for example, 4961 + ... + 6959.

It is an arithmetic number, because the mean of its divisors is an integer number (843750).

Almost surely, 2^11914040 is an apocalyptic number.

11914040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11914040 is an abundant number, since it is smaller than the sum of its proper divisors (15085960).

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

11914040 is a wasteful number, since it uses less digits than its factorization.

11914040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159 (or 2155 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 11914040 is about 3451.6720585826. The cubic root of 11914040 is about 228.3948733313.

Adding to 11914040 its reverse (4041911), we get a palindrome (15955951).

The spelling of 11914040 in words is "eleven million, nine hundred fourteen thousand, forty".