420000240293 has 2 divisors, whose sum is σ = 420000240294. Its totient is φ = 420000240292.

The previous prime is 420000240269. The next prime is 420000240311. The reversal of 420000240293 is 392042000024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 350911694884 + 69088545409 = 592378^2 + 262847^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420000240293 is a prime.

It is a super-3 number, since 3×420000240293³ (a number of 36 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420000240193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210000120146 + 210000120147.

It is an arithmetic number, because the mean of its divisors is an integer number (210000120147).

Almost surely, 2^420000240293 is an apocalyptic number.

It is an amenable number.

420000240293 is a deficient number, since it is larger than the sum of its proper divisors (1).

420000240293 is an equidigital number, since it uses as much as digits as its factorization.

420000240293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

The spelling of 420000240293 in words is "four hundred twenty billion, two hundred forty thousand, two hundred ninety-three".