1229069399 has 8 divisors (see below), whose sum is σ = 1239991200. Its totient is φ = 1218190336.

The previous prime is 1229069381. The next prime is 1229069449. The reversal of 1229069399 is 9939609221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1229069399 is a prime.

It is a super-2 number, since 2×1229069399² = 3021223175116442402, 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 (1229069299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48527 + ... + 69375.

It is an arithmetic number, because the mean of its divisors is an integer number (154998900).

Almost surely, 2^1229069399 is an apocalyptic number.

1229069399 is a deficient number, since it is larger than the sum of its proper divisors (10921801).

1229069399 is a wasteful number, since it uses less digits than its factorization.

1229069399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21369.

The product of its (nonzero) digits is 472392, while the sum is 50.

The square root of 1229069399 is about 35058.0860715470. The cubic root of 1229069399 is about 1071.1709889637.

The spelling of 1229069399 in words is "one billion, two hundred twenty-nine million, sixty-nine thousand, three hundred ninety-nine".