1409705 has 24 divisors (see below), whose sum is σ = 1975104. Its totient is φ = 957600.

The previous prime is 1409677. The next prime is 1409713. The reversal of 1409705 is 5079041.

It is not a de Polignac number, because 1409705 - 2¹⁶ = 1344169 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19820 + ... + 19890.

It is an arithmetic number, because the mean of its divisors is an integer number (82296).

2^1409705 is an apocalyptic number.

It is an amenable number.

1409705 is a deficient number, since it is larger than the sum of its proper divisors (565399).

1409705 is a wasteful number, since it uses less digits than its factorization.

1409705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1409705 is about 1187.3099847976. The cubic root of 1409705 is about 112.1267962371.

It can be divided in two parts, 1409 and 705, that multiplied together give a triangular number (993345 = T₁₄₀₉).

The spelling of 1409705 in words is "one million, four hundred nine thousand, seven hundred five".