11287480 has 32 divisors (see below), whose sum is σ = 26503200. Its totient is φ = 4318336.

The previous prime is 11287453. The next prime is 11287481. The reversal of 11287480 is 8478211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11287481) 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, 5215 + ... + 7054.

It is an arithmetic number, because the mean of its divisors is an integer number (828225).

Almost surely, 2^11287480 is an apocalyptic number.

11287480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11287480 is an abundant number, since it is smaller than the sum of its proper divisors (15215720).

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

11287480 is a wasteful number, since it uses less digits than its factorization.

11287480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12303 (or 12299 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 11287480 is about 3359.6845089978. The cubic root of 11287480 is about 224.3187956513.

The spelling of 11287480 in words is "eleven million, two hundred eighty-seven thousand, four hundred eighty".