11445040 has 20 divisors (see below), whose sum is σ = 26609904. Its totient is φ = 4577984.

The previous prime is 11445019. The next prime is 11445043. The reversal of 11445040 is 4054411.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 11444999 and 11445017.

It is not an unprimeable number, because it can be changed into a prime (11445043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71452 + ... + 71611.

Almost surely, 2^11445040 is an apocalyptic number.

11445040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11445040 is an abundant number, since it is smaller than the sum of its proper divisors (15164864).

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

11445040 is a wasteful number, since it uses less digits than its factorization.

11445040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143076 (or 143070 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 11445040 is about 3383.0518766345. The cubic root of 11445040 is about 225.3577190404.

Adding to 11445040 its reverse (4054411), we get a palindrome (15499451).

It can be divided in two parts, 114 and 45040, that added together give a palindrome (45154).

The spelling of 11445040 in words is "eleven million, four hundred forty-five thousand, forty".