1409704509 has 8 divisors (see below), whose sum is σ = 1940238592. Its totient is φ = 909486720.

The previous prime is 1409704469. The next prime is 1409704531. The reversal of 1409704509 is 9054079041.

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

It is not a de Polignac number, because 1409704509 - 2¹⁹ = 1409180221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1409704559) 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, 7578964 + ... + 7579149.

It is an arithmetic number, because the mean of its divisors is an integer number (242529824).

Almost surely, 2^1409704509 is an apocalyptic number.

It is an amenable number.

1409704509 is a deficient number, since it is larger than the sum of its proper divisors (530534083).

1409704509 is a wasteful number, since it uses less digits than its factorization.

1409704509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15158147.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 1409704509 is about 37546.0318675622. The cubic root of 1409704509 is about 1121.2678321916.

The spelling of 1409704509 in words is "one billion, four hundred nine million, seven hundred four thousand, five hundred nine".