11450440 has 32 divisors (see below), whose sum is σ = 25877880. Its totient is φ = 4559872.

The previous prime is 11450429. The next prime is 11450441. The reversal of 11450440 is 4405411.

It can be written as a sum of positive squares in 4 ways, for example, as 11383876 + 66564 = 3374^2 + 258^2 .

It is a super-2 number, since 2×11450440² = 262225152387200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11450441) 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 7 ways as a sum of consecutive naturals, for example, 11232 + ... + 12208.

Almost surely, 2^11450440 is an apocalyptic number.

11450440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11450440 is the 1954-th octagonal number.

It is an amenable number.

11450440 is an abundant number, since it is smaller than the sum of its proper divisors (14427440).

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

11450440 is a wasteful number, since it uses less digits than its factorization.

11450440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281 (or 1277 counting only the distinct ones).

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

The square root of 11450440 is about 3383.8498784668. The cubic root of 11450440 is about 225.3931562354.

Adding to 11450440 its reverse (4405411), we get a palindrome (15855851).

The spelling of 11450440 in words is "eleven million, four hundred fifty thousand, four hundred forty".