202422427 has 2 divisors, whose sum is σ = 202422428. Its totient is φ = 202422426.

The previous prime is 202422419. The next prime is 202422431. The reversal of 202422427 is 724224202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 202422427 - 2³ = 202422419 is a prime.

It is equal to p_11205736 and since 202422427 and 11205736 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (202422487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101211213 + 101211214.

It is an arithmetic number, because the mean of its divisors is an integer number (101211214).

Almost surely, 2^202422427 is an apocalyptic number.

202422427 is a deficient number, since it is larger than the sum of its proper divisors (1).

202422427 is an equidigital number, since it uses as much as digits as its factorization.

202422427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 25.

The square root of 202422427 is about 14227.5235722876. The cubic root of 202422427 is about 587.1551519002.

Adding to 202422427 its reverse (724224202), we get a palindrome (926646629).

The spelling of 202422427 in words is "two hundred two million, four hundred twenty-two thousand, four hundred twenty-seven".