1002810040 has 32 divisors (see below), whose sum is σ = 2257274880. Its totient is φ = 400954752.

The previous prime is 1002810031. The next prime is 1002810071. The reversal of 1002810040 is 400182001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1002809996 and 1002810023.

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 7 ways as a sum of consecutive naturals, for example, 139822 + ... + 146818.

It is an arithmetic number, because the mean of its divisors is an integer number (70539840).

Almost surely, 2^1002810040 is an apocalyptic number.

1002810040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002810040 is an abundant number, since it is smaller than the sum of its proper divisors (1254464840).

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

1002810040 is a wasteful number, since it uses less digits than its factorization.

1002810040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10591 (or 10587 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1002810040 is about 31667.1760660783. The cubic root of 1002810040 is about 1000.9358039977.

Adding to 1002810040 its reverse (400182001), we get a palindrome (1402992041).

The spelling of 1002810040 in words is "one billion, two million, eight hundred ten thousand, forty".