1212342992 has 20 divisors (see below), whose sum is σ = 2684474016. Its totient is φ = 519575520.

The previous prime is 1212342991. The next prime is 1212342997. The reversal of 1212342992 is 2992432121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212342991) 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, 5412134 + ... + 5412357.

Almost surely, 2^1212342992 is an apocalyptic number.

It is an amenable number.

1212342992 is an abundant number, since it is smaller than the sum of its proper divisors (1472131024).

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

1212342992 is a wasteful number, since it uses less digits than its factorization.

1212342992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10824506 (or 10824500 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 1212342992 is about 34818.7161164797. The cubic root of 1212342992 is about 1066.2895887633.

The spelling of 1212342992 in words is "one billion, two hundred twelve million, three hundred forty-two thousand, nine hundred ninety-two".