13842731 has 8 divisors (see below), whose sum is σ = 15842784. Its totient is φ = 11848320.

The previous prime is 13842727. The next prime is 13842737. The reversal of 13842731 is 13724831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13842731 - 2² = 13842727 is a prime.

It is a super-2 number, since 2×13842731² = 383242403076722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13842694 and 13842703.

It is not an unprimeable number, because it can be changed into a prime (13842737) 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, 8801 + ... + 10253.

It is an arithmetic number, because the mean of its divisors is an integer number (1980348).

Almost surely, 2^13842731 is an apocalyptic number.

13842731 is a deficient number, since it is larger than the sum of its proper divisors (2000053).

13842731 is a wasteful number, since it uses less digits than its factorization.

13842731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2821.

The product of its digits is 4032, while the sum is 29.

The square root of 13842731 is about 3720.5820781163. The cubic root of 13842731 is about 240.1083480696.

The spelling of 13842731 in words is "thirteen million, eight hundred forty-two thousand, seven hundred thirty-one".