1503398568 has 128 divisors (see below), whose sum is σ = 4470865920. Its totient is φ = 412231680.

The previous prime is 1503398557. The next prime is 1503398581. The reversal of 1503398568 is 8658933051.

It is a super-3 number, since 3×1503398568³ (a number of 29 digits) contains 333 as substring.

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 31 ways as a sum of consecutive naturals, for example, 660280 + ... + 662552.

It is an arithmetic number, because the mean of its divisors is an integer number (34928640).

Almost surely, 2^1503398568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1503398568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2235432960).

1503398568 is an abundant number, since it is smaller than the sum of its proper divisors (2967467352).

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

1503398568 is a wasteful number, since it uses less digits than its factorization.

1503398568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2447 (or 2443 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 48.

The square root of 1503398568 is about 38773.6839621927. The cubic root of 1503398568 is about 1145.5781213799.

The spelling of 1503398568 in words is "one billion, five hundred three million, three hundred ninety-eight thousand, five hundred sixty-eight".