1242306912 has 192 divisors, whose sum is σ = 4243083264. Its totient is φ = 308605440.

The previous prime is 1242306893. The next prime is 1242306941. The reversal of 1242306912 is 2196032421.

It is a self number, because there is not a number n which added to its sum of digits gives 1242306912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166363 + ... + 173669.

It is an arithmetic number, because the mean of its divisors is an integer number (22099392).

Almost surely, 2^1242306912 is an apocalyptic number.

1242306912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242306912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2121541632).

1242306912 is an abundant number, since it is smaller than the sum of its proper divisors (3000776352).

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

1242306912 is a wasteful number, since it uses less digits than its factorization.

1242306912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7361 (or 7353 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1242306912 is about 35246.3744518497. The cubic root of 1242306912 is about 1075.0028951067.

The spelling of 1242306912 in words is "one billion, two hundred forty-two million, three hundred six thousand, nine hundred twelve".