446421229 has 2 divisors, whose sum is σ = 446421230. Its totient is φ = 446421228.

The previous prime is 446421223. The next prime is 446421251. The reversal of 446421229 is 922124644.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 446181129 + 240100 = 21123^2 + 490^2 .

It is a cyclic number.

It is not a de Polignac number, because 446421229 - 2³ = 446421221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 446421194 and 446421203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (446421221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223210614 + 223210615.

It is an arithmetic number, because the mean of its divisors is an integer number (223210615).

Almost surely, 2^446421229 is an apocalyptic number.

It is an amenable number.

446421229 is a deficient number, since it is larger than the sum of its proper divisors (1).

446421229 is an equidigital number, since it uses as much as digits as its factorization.

446421229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 34.

The square root of 446421229 is about 21128.6826139256. The cubic root of 446421229 is about 764.2725817790.

The spelling of 446421229 in words is "four hundred forty-six million, four hundred twenty-one thousand, two hundred twenty-nine".