1144404209 has 8 divisors (see below), whose sum is σ = 1232736960. Its totient is φ = 1056114576.

The previous prime is 1144404197. The next prime is 1144404211. The reversal of 1144404209 is 9024044411.

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 1144404209 - 2¹⁶ = 1144338673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1194404209) 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, 63194 + ... + 79260.

It is an arithmetic number, because the mean of its divisors is an integer number (154092120).

Almost surely, 2^1144404209 is an apocalyptic number.

It is an amenable number.

1144404209 is a deficient number, since it is larger than the sum of its proper divisors (88332751).

1144404209 is a wasteful number, since it uses less digits than its factorization.

1144404209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21559.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 1144404209 is about 33829.0438676590. The cubic root of 1144404209 is about 1045.9874700999.

The spelling of 1144404209 in words is "one billion, one hundred forty-four million, four hundred four thousand, two hundred nine".