13840734 has 16 divisors (see below), whose sum is σ = 27779472. Its totient is φ = 4597248.

The previous prime is 13840709. The next prime is 13840769. The reversal of 13840734 is 43704831.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 2179 + ... + 5694.

It is an arithmetic number, because the mean of its divisors is an integer number (1736217).

Almost surely, 2^13840734 is an apocalyptic number.

13840734 is an abundant number, since it is smaller than the sum of its proper divisors (13938738).

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

13840734 is a wasteful number, since it uses less digits than its factorization.

13840734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8171.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 13840734 is about 3720.3136964509. The cubic root of 13840734 is about 240.0968012289.

The spelling of 13840734 in words is "thirteen million, eight hundred forty thousand, seven hundred thirty-four".