1002445 has 8 divisors (see below), whose sum is σ = 1211544. Its totient is φ = 796224.

The previous prime is 1002433. The next prime is 1002451. The reversal of 1002445 is 5442001.

It can be written as a sum of positive squares in 4 ways, for example, as 84681 + 917764 = 291^2 + 958^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1002445 - 2⁹ = 1001933 is a prime.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 147 + ... + 1423.

It is an arithmetic number, because the mean of its divisors is an integer number (151443).

2^1002445 is an apocalyptic number.

It is an amenable number.

1002445 is a deficient number, since it is larger than the sum of its proper divisors (209099).

1002445 is a wasteful number, since it uses less digits than its factorization.

1002445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 1002445 is about 1001.2217536590. The cubic root of 1002445 is about 100.0814336676.

Adding to 1002445 its reverse (5442001), we get a palindrome (6444446).

The spelling of 1002445 in words is "one million, two thousand, four hundred forty-five".