1409885 has 8 divisors (see below), whose sum is σ = 1737816. Its totient is φ = 1097280.

The previous prime is 1409879. The next prime is 1409899. The reversal of 1409885 is 5889041.

It can be written as a sum of positive squares in 4 ways, for example, as 682276 + 727609 = 826^2 + 853^2 .

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

It is not a de Polignac number, because 1409885 - 2⁴ = 1409869 is a prime.

It is a plaindrome in base 9.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3626 + ... + 3995.

It is an arithmetic number, because the mean of its divisors is an integer number (217227).

2^1409885 is an apocalyptic number.

It is an amenable number.

1409885 is a deficient number, since it is larger than the sum of its proper divisors (327931).

1409885 is an equidigital number, since it uses as much as digits as its factorization.

1409885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7663.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 1409885 is about 1187.3857839809. The cubic root of 1409885 is about 112.1315683855.

The spelling of 1409885 in words is "one million, four hundred nine thousand, eight hundred eighty-five".