299940293 has 2 divisors, whose sum is σ = 299940294. Its totient is φ = 299940292.

The previous prime is 299940269. The next prime is 299940313. The reversal of 299940293 is 392049992.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 250842244 + 49098049 = 15838^2 + 7007^2 .

It is a cyclic number.

It is not a de Polignac number, because 299940293 - 2²⁶ = 232831429 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (299940203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149970146 + 149970147.

It is an arithmetic number, because the mean of its divisors is an integer number (149970147).

Almost surely, 2^299940293 is an apocalyptic number.

It is an amenable number.

299940293 is a deficient number, since it is larger than the sum of its proper divisors (1).

299940293 is an equidigital number, since it uses as much as digits as its factorization.

299940293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 314928, while the sum is 47.

The square root of 299940293 is about 17318.7843972953. The cubic root of 299940293 is about 669.3885362099.

The spelling of 299940293 in words is "two hundred ninety-nine million, nine hundred forty thousand, two hundred ninety-three".