1242636076 has 48 divisors (see below), whose sum is σ = 2415587328. Its totient is φ = 554601600.

The previous prime is 1242636071. The next prime is 1242636089. The reversal of 1242636076 is 6706362421.

It is not an unprimeable number, because it can be changed into a prime (1242636071) 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, 844021 + ... + 845491.

It is an arithmetic number, because the mean of its divisors is an integer number (50324736).

Almost surely, 2^1242636076 is an apocalyptic number.

It is an amenable number.

1242636076 is a deficient number, since it is larger than the sum of its proper divisors (1172951252).

1242636076 is a wasteful number, since it uses less digits than its factorization.

1242636076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1822 (or 1820 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 1242636076 is about 35251.0436157570. The cubic root of 1242636076 is about 1075.0978316589.

Adding to 1242636076 its reverse (6706362421), we get a palindrome (7948998497).

The spelling of 1242636076 in words is "one billion, two hundred forty-two million, six hundred thirty-six thousand, seventy-six".