1002444445 has 8 divisors (see below), whose sum is σ = 1203162840. Its totient is φ = 801802560.

The previous prime is 1002444439. The next prime is 1002444449. The reversal of 1002444445 is 5444442001.

1002444445 is digitally balanced in base 2 and base 6, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1734489 + 1000709956 = 1317^2 + 31634^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1002444445 - 2³ = 1002444437 is a prime.

It is a super-2 number, since 2×1002444445² = 2009789730622716050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002444449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15355 + ... + 47335.

It is an arithmetic number, because the mean of its divisors is an integer number (150395355).

Almost surely, 2^1002444445 is an apocalyptic number.

It is an amenable number.

1002444445 is a deficient number, since it is larger than the sum of its proper divisors (200718395).

1002444445 is an equidigital number, since it uses as much as digits as its factorization.

1002444445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38255.

The product of its (nonzero) digits is 10240, while the sum is 28.

The square root of 1002444445 is about 31661.4030800911. The cubic root of 1002444445 is about 1000.8141519767.

Adding to 1002444445 its reverse (5444442001), we get a palindrome (6446886446).

The spelling of 1002444445 in words is "one billion, two million, four hundred forty-four thousand, four hundred forty-five".