13857340 has 24 divisors (see below), whose sum is σ = 33257952. Its totient is φ = 4751040.

The previous prime is 13857317. The next prime is 13857343. The reversal of 13857340 is 4375831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13857343) 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, 49351 + ... + 49630.

It is an arithmetic number, because the mean of its divisors is an integer number (1385748).

Almost surely, 2^13857340 is an apocalyptic number.

13857340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13857340 is an abundant number, since it is smaller than the sum of its proper divisors (19400612).

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

13857340 is a wasteful number, since it uses less digits than its factorization.

13857340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98997 (or 98995 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 13857340 is about 3722.5448284742. The cubic root of 13857340 is about 240.1927849149.

The spelling of 13857340 in words is "thirteen million, eight hundred fifty-seven thousand, three hundred forty".