1002545004 has 24 divisors (see below), whose sum is σ = 2377622128. Its totient is φ = 328703040.

The previous prime is 1002544987. The next prime is 1002545077. The reversal of 1002545004 is 4005452001.

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, 684067 + ... + 685530.

Almost surely, 2^1002545004 is an apocalyptic number.

It is an amenable number.

1002545004 is an abundant number, since it is smaller than the sum of its proper divisors (1375077124).

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

1002545004 is a wasteful number, since it uses less digits than its factorization.

1002545004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369665 (or 1369663 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 1002545004 is about 31662.9910779130. The cubic root of 1002545004 is about 1000.8476160108.

Adding to 1002545004 its reverse (4005452001), we get a palindrome (5007997005).

The spelling of 1002545004 in words is "one billion, two million, five hundred forty-five thousand, four".