11490140 has 12 divisors (see below), whose sum is σ = 24129336. Its totient is φ = 4596048.

The previous prime is 11490139. The next prime is 11490151. The reversal of 11490140 is 4109411.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 574507 = 11490140 / (1 + 1 + 4 + 9 + 0 + 1 + 4 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287234 + ... + 287273.

It is an arithmetic number, because the mean of its divisors is an integer number (2010778).

Almost surely, 2^11490140 is an apocalyptic number.

11490140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11490140 is an abundant number, since it is smaller than the sum of its proper divisors (12639196).

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

11490140 is a wasteful number, since it uses less digits than its factorization.

11490140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574516 (or 574514 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 11490140 is about 3389.7109021272. The cubic root of 11490140 is about 225.6533438148.

Adding to 11490140 its reverse (4109411), we get a palindrome (15599551).

The spelling of 11490140 in words is "eleven million, four hundred ninety thousand, one hundred forty".