11322540 has 36 divisors (see below), whose sum is σ = 34345584. Its totient is φ = 3019296.

The previous prime is 11322539. The next prime is 11322551. The reversal of 11322540 is 4522311.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31272 + ... + 31631.

It is an arithmetic number, because the mean of its divisors is an integer number (954044).

Almost surely, 2^11322540 is an apocalyptic number.

11322540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11322540 is an abundant number, since it is smaller than the sum of its proper divisors (23023044).

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

11322540 is a wasteful number, since it uses less digits than its factorization.

11322540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62918 (or 62913 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 11322540 is about 3364.8982153997. The cubic root of 11322540 is about 224.5508075277.

Adding to 11322540 its reverse (4522311), we get a palindrome (15844851).

The spelling of 11322540 in words is "eleven million, three hundred twenty-two thousand, five hundred forty".