403251332544040 has 32 divisors (see below), whose sum is σ = 907339285125000. Its totient is φ = 161296304235264.

The previous prime is 403251332544017. The next prime is 403251332544059. The reversal of 403251332544040 is 40445233152304.

It can be written as a sum of positive squares in 4 ways, for example, as 356800592175556 + 46450740368484 = 18889166^2 + 6815478^2 .

It is a super-2 number, since 2×403251332544040² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 403251332543984 and 403251332544002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130604415 + ... + 133656334.

Almost surely, 2^{403251332544040} is an apocalyptic number.

403251332544040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

403251332544040 is an abundant number, since it is smaller than the sum of its proper divisors (504087952580960).

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

403251332544040 is a wasteful number, since it uses less digits than its factorization.

403251332544040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264298909 (or 264298905 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 40.

Adding to 403251332544040 its reverse (40445233152304), we get a palindrome (443696565696344).

The spelling of 403251332544040 in words is "four hundred three trillion, two hundred fifty-one billion, three hundred thirty-two million, five hundred forty-four thousand, forty".