1242707206 has 16 divisors (see below), whose sum is σ = 2041477200. Its totient is φ = 563835168.

The previous prime is 1242707203. The next prime is 1242707243. The reversal of 1242707206 is 6027072421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242707203) 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 7 ways as a sum of consecutive naturals, for example, 403521 + ... + 406588.

It is an arithmetic number, because the mean of its divisors is an integer number (127592325).

Almost surely, 2^1242707206 is an apocalyptic number.

1242707206 is a deficient number, since it is larger than the sum of its proper divisors (798769994).

1242707206 is a wasteful number, since it uses less digits than its factorization.

1242707206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810183.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 1242707206 is about 35252.0525076200. The cubic root of 1242707206 is about 1075.1183445699.

Adding to 1242707206 its reverse (6027072421), we get a palindrome (7269779627).

The spelling of 1242707206 in words is "one billion, two hundred forty-two million, seven hundred seven thousand, two hundred six".