446220157 has 2 divisors, whose sum is σ = 446220158. Its totient is φ = 446220156.

The previous prime is 446220143. The next prime is 446220211. The reversal of 446220157 is 751022644.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 377097561 + 69122596 = 19419^2 + 8314^2 .

It is a cyclic number.

It is not a de Polignac number, because 446220157 - 2¹⁹ = 445695869 is a prime.

It is a super-2 number, since 2×446220157² = 398224857026209298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (446220557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223110078 + 223110079.

It is an arithmetic number, because the mean of its divisors is an integer number (223110079).

Almost surely, 2^446220157 is an apocalyptic number.

It is an amenable number.

446220157 is a deficient number, since it is larger than the sum of its proper divisors (1).

446220157 is an equidigital number, since it uses as much as digits as its factorization.

446220157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 446220157 is about 21123.9238069067. The cubic root of 446220157 is about 764.1578195437.

The spelling of 446220157 in words is "four hundred forty-six million, two hundred twenty thousand, one hundred fifty-seven".