1406855 has 16 divisors (see below), whose sum is σ = 1814400. Its totient is φ = 1044000.

The previous prime is 1406849. The next prime is 1406857. The reversal of 1406855 is 5586041.

It is a happy number.

1406855 is nontrivially palindromic in base 9.

It is not a de Polignac number, because 1406855 - 2¹⁴ = 1390471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406857) 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 15 ways as a sum of consecutive naturals, for example, 5480 + ... + 5730.

It is an arithmetic number, because the mean of its divisors is an integer number (113400).

2^1406855 is an apocalyptic number.

1406855 is a deficient number, since it is larger than the sum of its proper divisors (407545).

1406855 is a wasteful number, since it uses less digits than its factorization.

1406855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 1406855 is about 1186.1091855306. The cubic root of 1406855 is about 112.0511830263.

The spelling of 1406855 in words is "one million, four hundred six thousand, eight hundred fifty-five".