13840052 has 12 divisors (see below), whose sum is σ = 24343200. Its totient is φ = 6884856.

The previous prime is 13840033. The next prime is 13840061. The reversal of 13840052 is 25004831.

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 3 ways as a sum of consecutive naturals, for example, 7898 + ... + 9489.

It is an arithmetic number, because the mean of its divisors is an integer number (2028600).

Almost surely, 2^13840052 is an apocalyptic number.

It is an amenable number.

13840052 is a deficient number, since it is larger than the sum of its proper divisors (10503148).

13840052 is a wasteful number, since it uses less digits than its factorization.

13840052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17590 (or 17588 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 13840052 is about 3720.2220363844. Note that the first 3 decimals coincide. The cubic root of 13840052 is about 240.0928575867.

Adding to 13840052 its reverse (25004831), we get a palindrome (38844883).

The spelling of 13840052 in words is "thirteen million, eight hundred forty thousand, fifty-two".