11458980 has 144 divisors (see below), whose sum is σ = 38525760. Its totient is φ = 2739456.

The previous prime is 11458949. The next prime is 11458987. The reversal of 11458980 is 8985411.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11458987) 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 47 ways as a sum of consecutive naturals, for example, 138019 + ... + 138101.

It is an arithmetic number, because the mean of its divisors is an integer number (267540).

Almost surely, 2^11458980 is an apocalyptic number.

11458980 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 11458980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19262880).

11458980 is an abundant number, since it is smaller than the sum of its proper divisors (27066780).

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

11458980 is a wasteful number, since it uses less digits than its factorization.

11458980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 11458980 is about 3385.1115195810. Note that the first 3 decimals coincide. The cubic root of 11458980 is about 225.4491767673.

The spelling of 11458980 in words is "eleven million, four hundred fifty-eight thousand, nine hundred eighty".