1404213009 has 4 divisors (see below), whose sum is σ = 1872284016. Its totient is φ = 936142004.

The previous prime is 1404212989. The next prime is 1404213037. The reversal of 1404213009 is 9003124041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9003124041 = 3 ⋅3001041347.

It is a cyclic number.

It is not a de Polignac number, because 1404213009 - 2¹⁵ = 1404180241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1404213009.

It is not an unprimeable number, because it can be changed into a prime (1404213709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234035499 + ... + 234035504.

It is an arithmetic number, because the mean of its divisors is an integer number (468071004).

Almost surely, 2^1404213009 is an apocalyptic number.

It is an amenable number.

1404213009 is a deficient number, since it is larger than the sum of its proper divisors (468071007).

1404213009 is an equidigital number, since it uses as much as digits as its factorization.

1404213009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468071006.

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

The square root of 1404213009 is about 37472.8302774157. The cubic root of 1404213009 is about 1119.8099722777.

The spelling of 1404213009 in words is "one billion, four hundred four million, two hundred thirteen thousand, nine".