1020444201 has 24 divisors (see below), whose sum is σ = 1730074944. Its totient is φ = 567349920.

The previous prime is 1020444179. The next prime is 1020444211. The reversal of 1020444201 is 1024440201.

1020444201 is a `hidden beast` number, since 1 + 0 + 20 + 444 + 201 = 666.

It is not a de Polignac number, because 1020444201 - 2⁵ = 1020444169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020444211) 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 in 23 ways as a sum of consecutive naturals, for example, 216555 + ... + 221216.

It is an arithmetic number, because the mean of its divisors is an integer number (72086456).

Almost surely, 2^1020444201 is an apocalyptic number.

It is an amenable number.

1020444201 is a deficient number, since it is larger than the sum of its proper divisors (709630743).

1020444201 is a wasteful number, since it uses less digits than its factorization.

1020444201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437821 (or 437818 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1020444201 is about 31944.3923247884. The cubic root of 1020444201 is about 1006.7688134559.

Adding to 1020444201 its reverse (1024440201), we get a palindrome (2044884402).

The spelling of 1020444201 in words is "one billion, twenty million, four hundred forty-four thousand, two hundred one".