1242205034 has 16 divisors (see below), whose sum is σ = 2146265088. Its totient is φ = 528180912.

The previous prime is 1242205031. The next prime is 1242205039. The reversal of 1242205034 is 4305022421.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1242205031) 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 7 ways as a sum of consecutive naturals, for example, 347549 + ... + 351104.

It is an arithmetic number, because the mean of its divisors is an integer number (134141568).

Almost surely, 2^1242205034 is an apocalyptic number.

1242205034 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1242205034 is a deficient number, since it is larger than the sum of its proper divisors (904060054).

1242205034 is a wasteful number, since it uses less digits than its factorization.

1242205034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698789.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 1242205034 is about 35244.9291955595. The cubic root of 1242205034 is about 1074.9735083430.

Adding to 1242205034 its reverse (4305022421), we get a palindrome (5547227455).

The spelling of 1242205034 in words is "one billion, two hundred forty-two million, two hundred five thousand, thirty-four".