1404220009 has 8 divisors (see below), whose sum is σ = 1488080808. Its totient is φ = 1320499200.

The previous prime is 1404220007. The next prime is 1404220021. The reversal of 1404220009 is 9000224041.

It can be written as a sum of positive squares in 4 ways, for example, as 97614400 + 1306605609 = 9880^2 + 36147^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1404220009 - 2¹ = 1404220007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1404220007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13972 + ... + 54805.

It is an arithmetic number, because the mean of its divisors is an integer number (186010101).

Almost surely, 2^1404220009 is an apocalyptic number.

It is an amenable number.

1404220009 is a deficient number, since it is larger than the sum of its proper divisors (83860799).

1404220009 is a wasteful number, since it uses less digits than its factorization.

1404220009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69995.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1404220009 is about 37472.9236783040. The cubic root of 1404220009 is about 1119.8118330250.

The spelling of 1404220009 in words is "one billion, four hundred four million, two hundred twenty thousand, nine".