1002500 has 30 divisors (see below), whose sum is σ = 2197734. Its totient is φ = 400000.

The previous prime is 1002493. The next prime is 1002503. The reversal of 1002500 is 52001.

It can be written as a sum of positive squares in 5 ways, for example, as 107584 + 894916 = 328^2 + 946^2 .

It is not an unprimeable number, because it can be changed into a prime (1002503) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2300 + ... + 2700.

2^1002500 is an apocalyptic number.

1002500 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 1002500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1098867).

1002500 is an abundant number, since it is smaller than the sum of its proper divisors (1195234).

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

1002500 is an equidigital number, since it uses as much as digits as its factorization.

1002500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 8.

The square root of 1002500 is about 1001.2492197250. The cubic root of 1002500 is about 100.0832639852.

Adding to 1002500 its reverse (52001), we get a palindrome (1054501).

It can be divided in two parts, 100 and 2500, that multiplied together give a square (250000 = 500²).

The spelling of 1002500 in words is "one million, two thousand, five hundred".