1404321009 has 32 divisors (see below), whose sum is σ = 2343613440. Its totient is φ = 728177472.

The previous prime is 1404321007. The next prime is 1404321029. The reversal of 1404321009 is 9001234041.

It is not a de Polignac number, because 1404321009 - 2¹ = 1404321007 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1404321009.

It is not an unprimeable number, because it can be changed into a prime (1404321007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27487 + ... + 59700.

It is an arithmetic number, because the mean of its divisors is an integer number (73237920).

Almost surely, 2^1404321009 is an apocalyptic number.

It is an amenable number.

1404321009 is a deficient number, since it is larger than the sum of its proper divisors (939292431).

1404321009 is a wasteful number, since it uses less digits than its factorization.

1404321009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87269.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1404321009 is about 37474.2712937824. The cubic root of 1404321009 is about 1119.8386802624.

The spelling of 1404321009 in words is "one billion, four hundred four million, three hundred twenty-one thousand, nine".