1234289712 has 20 divisors (see below), whose sum is σ = 3188581880. Its totient is φ = 411429888.

The previous prime is 1234289699. The next prime is 1234289713. The reversal of 1234289712 is 2179824321.

It is not an unprimeable number, because it can be changed into a prime (1234289713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12857137 + ... + 12857232.

It is an arithmetic number, because the mean of its divisors is an integer number (159429094).

Almost surely, 2^1234289712 is an apocalyptic number.

1234289712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1234289712 is an abundant number, since it is smaller than the sum of its proper divisors (1954292168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1234289712 is a wasteful number, since it uses less digits than its factorization.

1234289712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25714380 (or 25714374 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 1234289712 is about 35132.4595210754. The cubic root of 1234289712 is about 1072.6854002163.

The spelling of 1234289712 in words is "one billion, two hundred thirty-four million, two hundred eighty-nine thousand, seven hundred twelve".