1003398648 has 32 divisors (see below), whose sum is σ = 2866853760. Its totient is φ = 286685280.

The previous prime is 1003398647. The next prime is 1003398673. The reversal of 1003398648 is 8468933001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003398647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2986138 + ... + 2986473.

It is an arithmetic number, because the mean of its divisors is an integer number (89589180).

Almost surely, 2^1003398648 is an apocalyptic number.

It is an amenable number.

1003398648 is an abundant number, since it is smaller than the sum of its proper divisors (1863455112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1003398648 is a wasteful number, since it uses less digits than its factorization.

1003398648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5972627 (or 5972623 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 1003398648 is about 31676.4683637555. The cubic root of 1003398648 is about 1001.1316016613.

The spelling of 1003398648 in words is "one billion, three million, three hundred ninety-eight thousand, six hundred forty-eight".