11440180 has 24 divisors (see below), whose sum is σ = 24276168. Its totient is φ = 4528128.

The previous prime is 11440151. The next prime is 11440199. The reversal of 11440180 is 8104411.

It can be written as a sum of positive squares in 4 ways, for example, as 3076516 + 8363664 = 1754^2 + 2892^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1009 + ... + 4888.

It is an arithmetic number, because the mean of its divisors is an integer number (1011507).

Almost surely, 2^11440180 is an apocalyptic number.

11440180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11440180 is an abundant number, since it is smaller than the sum of its proper divisors (12835988).

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

11440180 is a wasteful number, since it uses less digits than its factorization.

11440180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6003 (or 6001 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 11440180 is about 3382.3335140107. Note that the first 3 decimals coincide. The cubic root of 11440180 is about 225.3258160333.

Adding to 11440180 its reverse (8104411), we get a palindrome (19544591).

It can be divided in two parts, 114401 and 80, that added together give a triangular number (114481 = T₄₇₈).

The spelling of 11440180 in words is "eleven million, four hundred forty thousand, one hundred eighty".