1229339989 has 8 divisors (see below), whose sum is σ = 1323717120. Its totient is φ = 1137414336.

The previous prime is 1229339963. The next prime is 1229340011. The reversal of 1229339989 is 9899339221.

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 1229339989 - 2⁷ = 1229339861 is a prime.

It is a super-2 number, since 2×1229339989² = 3022553617109040242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229331989) 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, 611829 + ... + 613834.

It is an arithmetic number, because the mean of its divisors is an integer number (165464640).

Almost surely, 2^1229339989 is an apocalyptic number.

It is an amenable number.

1229339989 is a deficient number, since it is larger than the sum of its proper divisors (94377131).

1229339989 is a wasteful number, since it uses less digits than its factorization.

1229339989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225739.

The product of its digits is 1889568, while the sum is 55.

The square root of 1229339989 is about 35061.9450259109. The cubic root of 1229339989 is about 1071.2495923065.

The spelling of 1229339989 in words is "one billion, two hundred twenty-nine million, three hundred thirty-nine thousand, nine hundred eighty-nine".