1241240042 has 16 divisors (see below), whose sum is σ = 2128297920. Its totient is φ = 531845568.

The previous prime is 1241240041. The next prime is 1241240051. The reversal of 1241240042 is 2400421421.

It is a junction number, because it is equal to n+sod(n) for n = 1241239996 and 1241240023.

It is not an unprimeable number, because it can be changed into a prime (1241240041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106709 + ... + 117767.

It is an arithmetic number, because the mean of its divisors is an integer number (133018620).

Almost surely, 2^1241240042 is an apocalyptic number.

1241240042 is a deficient number, since it is larger than the sum of its proper divisors (887057878).

1241240042 is a wasteful number, since it uses less digits than its factorization.

1241240042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19085.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1241240042 is about 35231.2367367369. The cubic root of 1241240042 is about 1074.6950761630.

Adding to 1241240042 its reverse (2400421421), we get a palindrome (3641661463).

The spelling of 1241240042 in words is "one billion, two hundred forty-one million, two hundred forty thousand, forty-two".