446220461 has 2 divisors, whose sum is σ = 446220462. Its totient is φ = 446220460.

The previous prime is 446220451. The next prime is 446220497. The reversal of 446220461 is 164022644.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 411481225 + 34739236 = 20285^2 + 5894^2 .

It is a cyclic number.

It is not a de Polignac number, because 446220461 - 2²² = 442026157 is a prime.

It is a super-2 number, since 2×446220461² = 398225399630105042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (446220431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223110230 + 223110231.

It is an arithmetic number, because the mean of its divisors is an integer number (223110231).

Almost surely, 2^446220461 is an apocalyptic number.

It is an amenable number.

446220461 is a deficient number, since it is larger than the sum of its proper divisors (1).

446220461 is an equidigital number, since it uses as much as digits as its factorization.

446220461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 446220461 is about 21123.9310025383. The cubic root of 446220461 is about 764.1579930783.

The spelling of 446220461 in words is "four hundred forty-six million, two hundred twenty thousand, four hundred sixty-one".