1240431201 has 12 divisors (see below), whose sum is σ = 1794405028. Its totient is φ = 825721344.

The previous prime is 1240431173. The next prime is 1240431209. The reversal of 1240431201 is 1021340421.

It can be written as a sum of positive squares in 2 ways, for example, as 587577600 + 652853601 = 24240^2 + 25551^2 .

It is not a de Polignac number, because 1240431201 - 2¹¹ = 1240429153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1240431209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96340 + ... + 108453.

Almost surely, 2^1240431201 is an apocalyptic number.

It is an amenable number.

1240431201 is a deficient number, since it is larger than the sum of its proper divisors (553973827).

1240431201 is a wasteful number, since it uses less digits than its factorization.

1240431201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205472 (or 205469 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1240431201 is about 35219.7558339066. The cubic root of 1240431201 is about 1074.4615875298.

Adding to 1240431201 its reverse (1021340421), we get a palindrome (2261771622).

The spelling of 1240431201 in words is "one billion, two hundred forty million, four hundred thirty-one thousand, two hundred one".