1409385 has 16 divisors (see below), whose sum is σ = 2388096. Its totient is φ = 707328.

The previous prime is 1409381. The next prime is 1409393. The reversal of 1409385 is 5839041.

It is not a de Polignac number, because 1409385 - 2² = 1409381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1409381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2509 + ... + 3018.

It is an arithmetic number, because the mean of its divisors is an integer number (149256).

2^1409385 is an apocalyptic number.

1409385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1409385 is a deficient number, since it is larger than the sum of its proper divisors (978711).

1409385 is a wasteful number, since it uses less digits than its factorization.

1409385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5552.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1409385 is about 1187.1752187441. The cubic root of 1409385 is about 112.1183114146.

The spelling of 1409385 in words is "one million, four hundred nine thousand, three hundred eighty-five".