11387480 has 64 divisors (see below), whose sum is σ = 28123200. Its totient is φ = 4124160.

The previous prime is 11387473. The next prime is 11387503. The reversal of 11387480 is 8478311.

11387480 = T₄₁₅ + T₄₁₆ + ... + T₅₁₈.

11387480 = 20² + 21² + ... + 324².

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 31541 + ... + 31899.

It is an arithmetic number, because the mean of its divisors is an integer number (439425).

Almost surely, 2^11387480 is an apocalyptic number.

11387480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11387480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14061600).

11387480 is an abundant number, since it is smaller than the sum of its proper divisors (16735720).

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

11387480 is a wasteful number, since it uses less digits than its factorization.

11387480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 11387480 is about 3374.5340419086. The cubic root of 11387480 is about 224.9792902749.

The spelling of 11387480 in words is "eleven million, three hundred eighty-seven thousand, four hundred eighty".