420032227 has 2 divisors, whose sum is σ = 420032228. Its totient is φ = 420032226.

The previous prime is 420032191. The next prime is 420032231. The reversal of 420032227 is 722230024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420032227 - 2⁷ = 420032099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420032198 and 420032207.

It is not a weakly prime, because it can be changed into another prime (420032257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210016113 + 210016114.

It is an arithmetic number, because the mean of its divisors is an integer number (210016114).

Almost surely, 2^420032227 is an apocalyptic number.

420032227 is a deficient number, since it is larger than the sum of its proper divisors (1).

420032227 is an equidigital number, since it uses as much as digits as its factorization.

420032227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 420032227 is about 20494.6877751285. The cubic root of 420032227 is about 748.9063925090.

The spelling of 420032227 in words is "four hundred twenty million, thirty-two thousand, two hundred twenty-seven".