11320540 has 48 divisors (see below), whose sum is σ = 29643264. Its totient is φ = 3528000.

The previous prime is 11320537. The next prime is 11320553. The reversal of 11320540 is 4502311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2136 + ... + 5215.

It is an arithmetic number, because the mean of its divisors is an integer number (617568).

Almost surely, 2^11320540 is an apocalyptic number.

11320540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11320540 is an abundant number, since it is smaller than the sum of its proper divisors (18322724).

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

11320540 is a wasteful number, since it uses less digits than its factorization.

11320540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7378 (or 7376 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 11320540 is about 3364.6010164654. The cubic root of 11320540 is about 224.5375852866.

Adding to 11320540 its reverse (4502311), we get a palindrome (15822851).

The spelling of 11320540 in words is "eleven million, three hundred twenty thousand, five hundred forty".