7406240609 has 2 divisors, whose sum is σ = 7406240610. Its totient is φ = 7406240608.

The previous prime is 7406240591. The next prime is 7406240711. The reversal of 7406240609 is 9060426047.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6686659984 + 719580625 = 81772^2 + 26825^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7406240609 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (7406240209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3703120304 + 3703120305.

It is an arithmetic number, because the mean of its divisors is an integer number (3703120305).

Almost surely, 2^7406240609 is an apocalyptic number.

It is an amenable number.

7406240609 is a deficient number, since it is larger than the sum of its proper divisors (1).

7406240609 is an equidigital number, since it uses as much as digits as its factorization.

7406240609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 7406240609 is about 86059.5178292326. The cubic root of 7406240609 is about 1949.2428012568.

The spelling of 7406240609 in words is "seven billion, four hundred six million, two hundred forty thousand, six hundred nine".