445001242 has 24 divisors (see below), whose sum is σ = 817352640. Its totient is φ = 180676440.

The previous prime is 445001239. The next prime is 445001327. The reversal of 445001242 is 242100544.

It is a happy number.

It is a super-2 number, since 2×445001242² = 396052210763085128, which contains 22 as substring.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 117634 + ... + 121357.

It is an arithmetic number, because the mean of its divisors is an integer number (34056360).

Almost surely, 2^445001242 is an apocalyptic number.

445001242 is a deficient number, since it is larger than the sum of its proper divisors (372351398).

445001242 is a wasteful number, since it uses less digits than its factorization.

445001242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239026 (or 239019 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 445001242 is about 21095.0525479317. The cubic root of 445001242 is about 763.4613824243.

Adding to 445001242 its reverse (242100544), we get a palindrome (687101786).

The spelling of 445001242 in words is "four hundred forty-five million, one thousand, two hundred forty-two".