1240604347 has 2 divisors, whose sum is σ = 1240604348. Its totient is φ = 1240604346.

The previous prime is 1240604327. The next prime is 1240604389. The reversal of 1240604347 is 7434060421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1240604347 - 2¹⁹ = 1240080059 is a prime.

It is not a weakly prime, because it can be changed into another prime (1240604317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620302173 + 620302174.

It is an arithmetic number, because the mean of its divisors is an integer number (620302174).

Almost surely, 2^1240604347 is an apocalyptic number.

1240604347 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240604347 is an equidigital number, since it uses as much as digits as its factorization.

1240604347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 1240604347 is about 35222.2138287757. The cubic root of 1240604347 is about 1074.5115782294.

Adding to 1240604347 its reverse (7434060421), we get a palindrome (8674664768).

The spelling of 1240604347 in words is "one billion, two hundred forty million, six hundred four thousand, three hundred forty-seven".