4252342009 has 2 divisors, whose sum is σ = 4252342010. Its totient is φ = 4252342008.

The previous prime is 4252342001. The next prime is 4252342037. The reversal of 4252342009 is 9002432524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3997779984 + 254562025 = 63228^2 + 15955^2 .

It is a cyclic number.

It is not a de Polignac number, because 4252342009 - 2³ = 4252342001 is a prime.

It is not a weakly prime, because it can be changed into another prime (4252342001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2126171004 + 2126171005.

It is an arithmetic number, because the mean of its divisors is an integer number (2126171005).

Almost surely, 2^4252342009 is an apocalyptic number.

It is an amenable number.

4252342009 is a deficient number, since it is larger than the sum of its proper divisors (1).

4252342009 is an equidigital number, since it uses as much as digits as its factorization.

4252342009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 4252342009 is about 65209.9839671810. The cubic root of 4252342009 is about 1620.1033832565.

The spelling of 4252342009 in words is "four billion, two hundred fifty-two million, three hundred forty-two thousand, nine".