40304131002 has 48 divisors (see below), whose sum is σ = 88232119560. Its totient is φ = 13295376000.

The previous prime is 40304131001. The next prime is 40304131013. The reversal of 40304131002 is 20013140304.

It can be written as a sum of positive squares in 4 ways, for example, as 36156642201 + 4147488801 = 190149^2 + 64401^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (40304131001) 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 23 ways as a sum of consecutive naturals, for example, 5284752 + ... + 5292372.

Almost surely, 2^40304131002 is an apocalyptic number.

40304131002 is an abundant number, since it is smaller than the sum of its proper divisors (47927988558).

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

40304131002 is a wasteful number, since it uses less digits than its factorization.

40304131002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10639 (or 10636 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 40304131002 its reverse (20013140304), we get a palindrome (60317271306).

The spelling of 40304131002 in words is "forty billion, three hundred four million, one hundred thirty-one thousand, two".