11215480 has 32 divisors (see below), whose sum is σ = 25356240. Its totient is φ = 4464640.

The previous prime is 11215447. The next prime is 11215481. The reversal of 11215480 is 8451211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11215481) 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, 9735 + ... + 10825.

Almost surely, 2^11215480 is an apocalyptic number.

11215480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11215480 is an abundant number, since it is smaller than the sum of its proper divisors (14140760).

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

11215480 is a wasteful number, since it uses less digits than its factorization.

11215480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359 (or 1355 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 11215480 is about 3348.9520749034. The cubic root of 11215480 is about 223.8408201580.

Adding to 11215480 its reverse (8451211), we get a palindrome (19666691).

The spelling of 11215480 in words is "eleven million, two hundred fifteen thousand, four hundred eighty".