13840229 has 16 divisors (see below), whose sum is σ = 15665664. Its totient is φ = 12139200.

The previous prime is 13840217. The next prime is 13840237. The reversal of 13840229 is 92204831.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13840229 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13840249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24302 + ... + 24864.

It is an arithmetic number, because the mean of its divisors is an integer number (979104).

Almost surely, 2^13840229 is an apocalyptic number.

It is an amenable number.

13840229 is a deficient number, since it is larger than the sum of its proper divisors (1825435).

13840229 is a wasteful number, since it uses less digits than its factorization.

13840229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 13840229 is about 3720.2458252110. The cubic root of 13840229 is about 240.0938810957.

The spelling of 13840229 in words is "thirteen million, eight hundred forty thousand, two hundred twenty-nine".