1229363905 has 32 divisors (see below), whose sum is σ = 1866746880. Its totient is φ = 754902720.

The previous prime is 1229363903. The next prime is 1229363921. The reversal of 1229363905 is 5093639221.

It is not a de Polignac number, because 1229363905 - 2¹ = 1229363903 is a prime.

It is a super-2 number, since 2×1229363905² = 3022671221833698050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1229363903) 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 31 ways as a sum of consecutive naturals, for example, 1966 + ... + 49624.

It is an arithmetic number, because the mean of its divisors is an integer number (58335840).

Almost surely, 2^1229363905 is an apocalyptic number.

It is an amenable number.

1229363905 is a deficient number, since it is larger than the sum of its proper divisors (637382975).

1229363905 is a wasteful number, since it uses less digits than its factorization.

1229363905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47749.

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 1229363905 is about 35062.2860777788. The cubic root of 1229363905 is about 1071.2565390799.

The spelling of 1229363905 in words is "one billion, two hundred twenty-nine million, three hundred sixty-three thousand, nine hundred five".