13083440 has 20 divisors (see below), whose sum is σ = 30419184. Its totient is φ = 5233344.

The previous prime is 13083431. The next prime is 13083443. The reversal of 13083440 is 4438031.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (13083443) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 81692 + ... + 81851.

Almost surely, 2^13083440 is an apocalyptic number.

13083440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13083440 is an abundant number, since it is smaller than the sum of its proper divisors (17335744).

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

13083440 is a wasteful number, since it uses less digits than its factorization.

13083440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163556 (or 163550 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 13083440 is about 3617.1038138267. The cubic root of 13083440 is about 235.6354613343.

The spelling of 13083440 in words is "thirteen million, eighty-three thousand, four hundred forty".