1240204041 has 20 divisors (see below), whose sum is σ = 1869059412. Its totient is φ = 819479808.

The previous prime is 1240204037. The next prime is 1240204051. The reversal of 1240204041 is 1404020421.

1240204041 is a `hidden beast` number, since 1 + 240 + 20 + 404 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 272745225 + 967458816 = 16515^2 + 31104^2 .

It is not a de Polignac number, because 1240204041 - 2² = 1240204037 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1240204001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 58596 + ... + 76901.

Almost surely, 2^1240204041 is an apocalyptic number.

It is an amenable number.

1240204041 is a deficient number, since it is larger than the sum of its proper divisors (628855371).

1240204041 is a wasteful number, since it uses less digits than its factorization.

1240204041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135622 (or 135613 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1240204041 is about 35216.5307916609. The cubic root of 1240204041 is about 1074.3959948567.

Adding to 1240204041 its reverse (1404020421), we get a palindrome (2644224462).

The spelling of 1240204041 in words is "one billion, two hundred forty million, two hundred four thousand, forty-one".