1242434312 has 32 divisors (see below), whose sum is σ = 2664264000. Its totient is φ = 532090944.

The previous prime is 1242434287. The next prime is 1242434317. The reversal of 1242434312 is 2134342421.

It is not an unprimeable number, because it can be changed into a prime (1242434317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79583 + ... + 93905.

It is an arithmetic number, because the mean of its divisors is an integer number (83258250).

Almost surely, 2^1242434312 is an apocalyptic number.

It is an amenable number.

1242434312 is an abundant number, since it is smaller than the sum of its proper divisors (1421829688).

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

1242434312 is a wasteful number, since it uses less digits than its factorization.

1242434312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15885 (or 15881 counting only the distinct ones).

The product of its digits is 4608, while the sum is 26.

The square root of 1242434312 is about 35248.1816835989. The cubic root of 1242434312 is about 1075.0396414442.

Adding to 1242434312 its reverse (2134342421), we get a palindrome (3376776733).

The spelling of 1242434312 in words is "one billion, two hundred forty-two million, four hundred thirty-four thousand, three hundred twelve".