1229896885 has 64 divisors (see below), whose sum is σ = 1845043200. Its totient is φ = 768268800.

The previous prime is 1229896867. The next prime is 1229896901. The reversal of 1229896885 is 5886989221.

It is not a de Polignac number, because 1229896885 - 2²⁹ = 693025973 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2153650 + ... + 2154220.

It is an arithmetic number, because the mean of its divisors is an integer number (28828800).

Almost surely, 2^1229896885 is an apocalyptic number.

It is an amenable number.

1229896885 is a deficient number, since it is larger than the sum of its proper divisors (615146315).

1229896885 is a wasteful number, since it uses less digits than its factorization.

1229896885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722.

The product of its digits is 4976640, while the sum is 58.

The square root of 1229896885 is about 35069.8857283567. The cubic root of 1229896885 is about 1071.4113280230.

The spelling of 1229896885 in words is "one billion, two hundred twenty-nine million, eight hundred ninety-six thousand, eight hundred eighty-five".