446052421 has 2 divisors, whose sum is σ = 446052422. Its totient is φ = 446052420.

The previous prime is 446052413. The next prime is 446052457. The reversal of 446052421 is 124250644.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 429940225 + 16112196 = 20735^2 + 4014^2 .

It is a cyclic number.

It is not a de Polignac number, because 446052421 - 2³ = 446052413 is a prime.

It is a super-2 number, since 2×446052421² = 397925524559922482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 446052421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (446052401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223026210 + 223026211.

It is an arithmetic number, because the mean of its divisors is an integer number (223026211).

Almost surely, 2^446052421 is an apocalyptic number.

It is an amenable number.

446052421 is a deficient number, since it is larger than the sum of its proper divisors (1).

446052421 is an equidigital number, since it uses as much as digits as its factorization.

446052421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 446052421 is about 21119.9531486223. The cubic root of 446052421 is about 764.0620575168.

The spelling of 446052421 in words is "four hundred forty-six million, fifty-two thousand, four hundred twenty-one".