11587440 has 40 divisors (see below), whose sum is σ = 35921808. Its totient is φ = 3089920.

The previous prime is 11587393. The next prime is 11587451. The reversal of 11587440 is 4478511.

11587440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 11587398 and 11587407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23901 + ... + 24380.

Almost surely, 2^11587440 is an apocalyptic number.

11587440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11587440 is an abundant number, since it is smaller than the sum of its proper divisors (24334368).

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

11587440 is a wasteful number, since it uses less digits than its factorization.

11587440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48297 (or 48291 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 11587440 is about 3404.0329023087. The cubic root of 11587440 is about 226.2885082445.

The spelling of 11587440 in words is "eleven million, five hundred eighty-seven thousand, four hundred forty".