2118480 has 160 divisors (see below), whose sum is σ = 8166144. Its totient is φ = 442368.

The previous prime is 2118449. The next prime is 2118491. The reversal of 2118480 is 848112.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2118480.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21792 + ... + 21888.

2^2118480 is an apocalyptic number.

2118480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is a pronic number, being equal to 1455×1456.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2118480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4083072).

2118480 is an abundant number, since it is smaller than the sum of its proper divisors (6047664).

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

2118480 is a wasteful number, since it uses less digits than its factorization.

2118480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 2118480 is about 1455.4999141189. The cubic root of 2118480 is about 128.4324565421.

The spelling of 2118480 in words is "two million, one hundred eighteen thousand, four hundred eighty".