11489140 has 24 divisors (see below), whose sum is σ = 25983720. Its totient is φ = 4242048.

The previous prime is 11489123. The next prime is 11489147. The reversal of 11489140 is 4198411.

It can be written as a sum of positive squares in 4 ways, for example, as 559504 + 10929636 = 748^2 + 3306^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11489099 and 11489108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11489147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21835 + ... + 22354.

It is an arithmetic number, because the mean of its divisors is an integer number (1082655).

Almost surely, 2^11489140 is an apocalyptic number.

11489140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11489140 is an abundant number, since it is smaller than the sum of its proper divisors (14494580).

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

11489140 is a wasteful number, since it uses less digits than its factorization.

11489140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44211 (or 44209 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 11489140 is about 3389.5633937131. The cubic root of 11489140 is about 225.6467973355.

The spelling of 11489140 in words is "eleven million, four hundred eighty-nine thousand, one hundred forty".