1002044445 has 8 divisors (see below), whose sum is σ = 1603271136. Its totient is φ = 534423696.

The previous prime is 1002044431. The next prime is 1002044531. The reversal of 1002044445 is 5444402001.

It is a happy number.

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

It is not a de Polignac number, because 1002044445 - 2⁷ = 1002044317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33401467 + ... + 33401496.

It is an arithmetic number, because the mean of its divisors is an integer number (200408892).

Almost surely, 2^1002044445 is an apocalyptic number.

1002044445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1002044445 is a deficient number, since it is larger than the sum of its proper divisors (601226691).

1002044445 is an equidigital number, since it uses as much as digits as its factorization.

1002044445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66802971.

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 1002044445 is about 31655.0856103723. The cubic root of 1002044445 is about 1000.6810177762.

Adding to 1002044445 its reverse (5444402001), we get a palindrome (6446446446).

The spelling of 1002044445 in words is "one billion, two million, forty-four thousand, four hundred forty-five".