40103321540 has 12 divisors (see below), whose sum is σ = 84216975276. Its totient is φ = 16041328608.

The previous prime is 40103321539. The next prime is 40103321549. The reversal of 40103321540 is 4512330104.

It can be written as a sum of positive squares in 2 ways, for example, as 25060789636 + 15042531904 = 158306^2 + 122648^2 .

It is not an unprimeable number, because it can be changed into a prime (40103321549) 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 3 ways as a sum of consecutive naturals, for example, 1002583019 + ... + 1002583058.

It is an arithmetic number, because the mean of its divisors is an integer number (7018081273).

Almost surely, 2^40103321540 is an apocalyptic number.

It is an amenable number.

40103321540 is an abundant number, since it is smaller than the sum of its proper divisors (44113653736).

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

40103321540 is a wasteful number, since it uses less digits than its factorization.

40103321540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005166086 (or 2005166084 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 40103321540 its reverse (4512330104), we get a palindrome (44615651644).

The spelling of 40103321540 in words is "forty billion, one hundred three million, three hundred twenty-one thousand, five hundred forty".