13339240 has 32 divisors (see below), whose sum is σ = 30827880. Its totient is φ = 5190912.

The previous prime is 13339223. The next prime is 13339243. The reversal of 13339240 is 4293331.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12489156 + 850084 = 3534^2 + 922^2 .

It is not an unprimeable number, because it can be changed into a prime (13339243) 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 7 ways as a sum of consecutive naturals, for example, 3027 + ... + 5986.

Almost surely, 2^13339240 is an apocalyptic number.

13339240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13339240 is an abundant number, since it is smaller than the sum of its proper divisors (17488640).

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

13339240 is a wasteful number, since it uses less digits than its factorization.

13339240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9061 (or 9057 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 13339240 is about 3652.2924307892. The cubic root of 13339240 is about 237.1612307685.

The spelling of 13339240 in words is "thirteen million, three hundred thirty-nine thousand, two hundred forty".