13841405 has 16 divisors (see below), whose sum is σ = 17575680. Its totient is φ = 10435392.

The previous prime is 13841393. The next prime is 13841411. The reversal of 13841405 is 50414831.

It is a cyclic number.

It is not a de Polignac number, because 13841405 - 2¹⁰ = 13840381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34667 + ... + 35063.

It is an arithmetic number, because the mean of its divisors is an integer number (1098480).

Almost surely, 2^13841405 is an apocalyptic number.

It is an amenable number.

13841405 is a deficient number, since it is larger than the sum of its proper divisors (3734275).

13841405 is a wasteful number, since it uses less digits than its factorization.

13841405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 13841405 is about 3720.4038759253. The cubic root of 13841405 is about 240.1006811375.

It can be divided in two parts, 138 and 41405, that multiplied together give a triangular number (5713890 = T₃₃₈₀).

The spelling of 13841405 in words is "thirteen million, eight hundred forty-one thousand, four hundred five".