13452540 has 24 divisors (see below), whose sum is σ = 37667280. Its totient is φ = 3587328.

The previous prime is 13452533. The next prime is 13452547. The reversal of 13452540 is 4525431.

It is an interprime number because it is at equal distance from previous prime (13452533) and next prime (13452547).

It is a self number, because there is not a number n which added to its sum of digits gives 13452540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13452547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112045 + ... + 112164.

It is an arithmetic number, because the mean of its divisors is an integer number (1569470).

Almost surely, 2^13452540 is an apocalyptic number.

13452540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13452540 is an abundant number, since it is smaller than the sum of its proper divisors (24214740).

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

13452540 is a wasteful number, since it uses less digits than its factorization.

13452540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224221 (or 224219 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 13452540 is about 3667.7704399267. The cubic root of 13452540 is about 237.8308003441.

Adding to 13452540 its reverse (4525431), we get a palindrome (17977971).

The spelling of 13452540 in words is "thirteen million, four hundred fifty-two thousand, five hundred forty".