1408081 has 4 divisors (see below), whose sum is σ = 1414512. Its totient is φ = 1401652.

The previous prime is 1408079. The next prime is 1408087. The reversal of 1408081 is 1808041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1408081 - 2¹ = 1408079 is a prime.

It is a super-2 number, since 2×1408081² = 3965384205122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1408087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2875 + ... + 3328.

It is an arithmetic number, because the mean of its divisors is an integer number (353628).

2^1408081 is an apocalyptic number.

It is an amenable number.

1408081 is a deficient number, since it is larger than the sum of its proper divisors (6431).

1408081 is an equidigital number, since it uses as much as digits as its factorization.

1408081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6430.

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 1408081 is about 1186.6258888125. The cubic root of 1408081 is about 112.0837224765.

It can be divided in two parts, 14080 and 81, that added together give a square (14161 = 119²).

The spelling of 1408081 in words is "one million, four hundred eight thousand, eighty-one".