1408865 has 8 divisors (see below), whose sum is σ = 1764288. Its totient is φ = 1078000.

The previous prime is 1408859. The next prime is 1408867. The reversal of 1408865 is 5688041.

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

It is not a de Polignac number, because 1408865 - 2¹⁰ = 1407841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1408867) 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, 6011 + ... + 6240.

It is an arithmetic number, because the mean of its divisors is an integer number (220536).

2^1408865 is an apocalyptic number.

It is an amenable number.

1408865 is a deficient number, since it is larger than the sum of its proper divisors (355423).

1408865 is a wasteful number, since it uses less digits than its factorization.

1408865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12279.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 1408865 is about 1186.9561912724. The cubic root of 1408865 is about 112.1045208384.

It can be divided in two parts, 140 and 8865, that multiplied together give a triangular number (1241100 = T₁₅₇₅).

The spelling of 1408865 in words is "one million, four hundred eight thousand, eight hundred sixty-five".