1242030634 has 16 divisors (see below), whose sum is σ = 2007226368. Its totient is φ = 572996592.

The previous prime is 1242030631. The next prime is 1242030661. The reversal of 1242030634 is 4360302421.

It is a junction number, because it is equal to n+sod(n) for n = 1242030599 and 1242030608.

It is not an unprimeable number, because it can be changed into a prime (1242030631) 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, 59799 + ... + 77845.

It is an arithmetic number, because the mean of its divisors is an integer number (125451648).

Almost surely, 2^1242030634 is an apocalyptic number.

1242030634 is a deficient number, since it is larger than the sum of its proper divisors (765195734).

1242030634 is a wasteful number, since it uses less digits than its factorization.

1242030634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20709.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1242030634 is about 35242.4549939416. The cubic root of 1242030634 is about 1074.9231988399.

The spelling of 1242030634 in words is "one billion, two hundred forty-two million, thirty thousand, six hundred thirty-four".