1040503040 has 72 divisors (see below), whose sum is σ = 2503413528. Its totient is φ = 414351360.

The previous prime is 1040503039. The next prime is 1040503063. The reversal of 1040503040 is 403050401.

It can be written as a sum of positive squares in 4 ways, for example, as 530104576 + 510398464 = 23024^2 + 22592^2 .

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, 306794 + ... + 310166.

Almost surely, 2^1040503040 is an apocalyptic number.

1040503040 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 1040503040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1251706764).

1040503040 is an abundant number, since it is smaller than the sum of its proper divisors (1462910488).

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

1040503040 is an equidigital number, since it uses as much as digits as its factorization.

1040503040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3635 (or 3621 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1040503040 is about 32256.8293544173. The cubic root of 1040503040 is about 1013.3227299598.

Adding to 1040503040 its reverse (403050401), we get a palindrome (1443553441).

The spelling of 1040503040 in words is "one billion, forty million, five hundred three thousand, forty".