1242036234 has 32 divisors (see below), whose sum is σ = 2762424000. Its totient is φ = 413660592.

The previous prime is 1242036233. The next prime is 1242036277. The reversal of 1242036234 is 4326302421.

1242036234 is a `hidden beast` number, since 1 + 2 + 420 + 3 + 6 + 234 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1242036198 and 1242036207.

It is not an unprimeable number, because it can be changed into a prime (1242036233) 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 15 ways as a sum of consecutive naturals, for example, 58852 + ... + 77120.

It is an arithmetic number, because the mean of its divisors is an integer number (86325750).

Almost surely, 2^1242036234 is an apocalyptic number.

1242036234 is an abundant number, since it is smaller than the sum of its proper divisors (1520387766).

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

1242036234 is a wasteful number, since it uses less digits than its factorization.

1242036234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19539 (or 19533 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 1242036234 is about 35242.5344434818. The cubic root of 1242036234 is about 1074.9248143558.

Adding to 1242036234 its reverse (4326302421), we get a palindrome (5568338655).

The spelling of 1242036234 in words is "one billion, two hundred forty-two million, thirty-six thousand, two hundred thirty-four".