13035440 has 40 divisors (see below), whose sum is σ = 33064848. Its totient is φ = 4739840.

The previous prime is 13035437. The next prime is 13035443. The reversal of 13035440 is 4453031.

It is an interprime number because it is at equal distance from previous prime (13035437) and next prime (13035443).

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (13035443) 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, 6527 + ... + 8286.

Almost surely, 2^13035440 is an apocalyptic number.

13035440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13035440 is an abundant number, since it is smaller than the sum of its proper divisors (20029408).

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

13035440 is a wasteful number, since it uses less digits than its factorization.

13035440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14837 (or 14831 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 13035440 is about 3610.4625742417. The cubic root of 13035440 is about 235.3469449033.

Adding to 13035440 its reverse (4453031), we get a palindrome (17488471).

The spelling of 13035440 in words is "thirteen million, thirty-five thousand, four hundred forty".