445243401 has 6 divisors (see below), whose sum is σ = 643129370. Its totient is φ = 296828928.

The previous prime is 445243399. The next prime is 445243411. The reversal of 445243401 is 104342544.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 223203600 + 222039801 = 14940^2 + 14901^2 .

It is not a de Polignac number, because 445243401 - 2¹ = 445243399 is a prime.

It is a super-2 number, since 2×445243401² = 396483372268093602, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (445243411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24735736 + ... + 24735753.

Almost surely, 2^445243401 is an apocalyptic number.

It is an amenable number.

445243401 is a deficient number, since it is larger than the sum of its proper divisors (197885969).

445243401 is a wasteful number, since it uses less digits than its factorization.

445243401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49471495 (or 49471492 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 445243401 is about 21100.7914780465. The cubic root of 445243401 is about 763.5998431012.

Adding to 445243401 its reverse (104342544), we get a palindrome (549585945).

The spelling of 445243401 in words is "four hundred forty-five million, two hundred forty-three thousand, four hundred one".