1242440041 has 8 divisors (see below), whose sum is σ = 1286626304. Its totient is φ = 1198510560.

The previous prime is 1242440033. The next prime is 1242440051. The reversal of 1242440041 is 1400442421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1242440041 - 2³ = 1242440033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1242439994 and 1242440021.

It is not an unprimeable number, because it can be changed into a prime (1242440051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54321 + ... + 73726.

It is an arithmetic number, because the mean of its divisors is an integer number (160828288).

Almost surely, 2^1242440041 is an apocalyptic number.

It is an amenable number.

1242440041 is a deficient number, since it is larger than the sum of its proper divisors (44186263).

1242440041 is a wasteful number, since it uses less digits than its factorization.

1242440041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128391.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 1242440041 is about 35248.2629501086. The cubic root of 1242440041 is about 1075.0412938167.

Adding to 1242440041 its reverse (1400442421), we get a palindrome (2642882462).

The spelling of 1242440041 in words is "one billion, two hundred forty-two million, four hundred forty thousand, forty-one".