1003200040 has 32 divisors (see below), whose sum is σ = 2259321480. Its totient is φ = 400902912.

The previous prime is 1003199957. The next prime is 1003200049. The reversal of 1003200040 is 400023001.

It can be written as a sum of positive squares in 4 ways, for example, as 313927524 + 689272516 = 17718^2 + 26254^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1003200049) by changing a digit.

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, 33454 + ... + 55906.

Almost surely, 2^1003200040 is an apocalyptic number.

1003200040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1003200040 is an abundant number, since it is smaller than the sum of its proper divisors (1256121440).

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

1003200040 is a wasteful number, since it uses less digits than its factorization.

1003200040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23581 (or 23577 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 1003200040 is about 31673.3332631727. Note that the first 3 decimals coincide. The cubic root of 1003200040 is about 1001.0655442123.

Adding to 1003200040 its reverse (400023001), we get a palindrome (1403223041).

The spelling of 1003200040 in words is "one billion, three million, two hundred thousand, forty".