11811456 has 48 divisors (see below), whose sum is σ = 33992010. Its totient is φ = 3936768.

The previous prime is 11811451. The next prime is 11811461. The reversal of 11811456 is 65411811.

It is an interprime number because it is at equal distance from previous prime (11811451) and next prime (11811461).

It can be written as a sum of positive squares in only one way, i.e., 11451456 + 360000 = 3384^2 + 600^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (11811451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3975 + ... + 6278.

Almost surely, 2^11811456 is an apocalyptic number.

11811456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11811456 is an abundant number, since it is smaller than the sum of its proper divisors (22180554).

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

11811456 is a wasteful number, since it uses less digits than its factorization.

11811456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10273 (or 10258 counting only the distinct ones).

The product of its digits is 960, while the sum is 27.

The square root of 11811456 is about 3436.7798882093. The cubic root of 11811456 is about 227.7374632774.

The spelling of 11811456 in words is "eleven million, eight hundred eleven thousand, four hundred fifty-six".