1204449789 has 16 divisors (see below), whose sum is σ = 1702545920. Its totient is φ = 756060480.

The previous prime is 1204449733. The next prime is 1204449793. The reversal of 1204449789 is 9879444021.

It is not a de Polignac number, because 1204449789 - 2²⁸ = 936014333 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 (1204449709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171574 + ... + 178455.

It is an arithmetic number, because the mean of its divisors is an integer number (106409120).

Almost surely, 2^1204449789 is an apocalyptic number.

It is an amenable number.

1204449789 is a deficient number, since it is larger than the sum of its proper divisors (498096131).

1204449789 is a wasteful number, since it uses less digits than its factorization.

1204449789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350100.

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 1204449789 is about 34705.1838923236. The cubic root of 1204449789 is about 1063.9704507430.

The spelling of 1204449789 in words is "one billion, two hundred four million, four hundred forty-nine thousand, seven hundred eighty-nine".