20394299 has 2 divisors, whose sum is σ = 20394300. Its totient is φ = 20394298.

The previous prime is 20394263. The next prime is 20394323. The reversal of 20394299 is 99249302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20394299 - 2⁸ = 20394043 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20394499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10197149 + 10197150.

It is an arithmetic number, because the mean of its divisors is an integer number (10197150).

Almost surely, 2^20394299 is an apocalyptic number.

20394299 is a deficient number, since it is larger than the sum of its proper divisors (1).

20394299 is an equidigital number, since it uses as much as digits as its factorization.

20394299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 20394299 is about 4516.0047608478. The cubic root of 20394299 is about 273.2139860018.

The spelling of 20394299 in words is "twenty million, three hundred ninety-four thousand, two hundred ninety-nine".