1002502000 has 80 divisors (see below), whose sum is σ = 2480635872. Its totient is φ = 391641600.

The previous prime is 1002501979. The next prime is 1002502027. The reversal of 1002502000 is 2052001.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80172 + ... + 91828.

Almost surely, 2^1002502000 is an apocalyptic number.

1002502000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1002502000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1240317936).

1002502000 is an abundant number, since it is smaller than the sum of its proper divisors (1478133872).

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

1002502000 is a wasteful number, since it uses less digits than its factorization.

1002502000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11723 (or 11707 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 1002502000 is about 31662.3119812815. The cubic root of 1002502000 is about 1000.8333054092.

Adding to 1002502000 its reverse (2052001), we get a palindrome (1004554001).

The spelling of 1002502000 in words is "one billion, two million, five hundred two thousand".