13841890 has 8 divisors (see below), whose sum is σ = 24915420. Its totient is φ = 5536752.

The previous prime is 13841881. The next prime is 13841909. The reversal of 13841890 is 9814831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11417641 + 2424249 = 3379^2 + 1557^2 .

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

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, 692085 + ... + 692104.

Almost surely, 2^13841890 is an apocalyptic number.

13841890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13841890 is a deficient number, since it is larger than the sum of its proper divisors (11073530).

13841890 is a wasteful number, since it uses less digits than its factorization.

13841890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384196.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 13841890 is about 3720.4690564497. The cubic root of 13841890 is about 240.1034854643.

The spelling of 13841890 in words is "thirteen million, eight hundred forty-one thousand, eight hundred ninety".