403343404040 has 32 divisors (see below), whose sum is σ = 917719551000. Its totient is φ = 159524580864.

The previous prime is 403343404033. The next prime is 403343404063. The reversal of 403343404040 is 40404343304.

It can be written as a sum of positive squares in 4 ways, for example, as 224696856484 + 178646547556 = 474022^2 + 422666^2 .

It is a junction number, because it is equal to n+sod(n) for n = 403343403994 and 403343404012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56645795 + ... + 56652914.

Almost surely, 2^403343404040 is an apocalyptic number.

403343404040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

403343404040 is an abundant number, since it is smaller than the sum of its proper divisors (514376146960).

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

403343404040 is a wasteful number, since it uses less digits than its factorization.

403343404040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113298809 (or 113298805 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 29.

Adding to 403343404040 its reverse (40404343304), we get a palindrome (443747747344).

The spelling of 403343404040 in words is "four hundred three billion, three hundred forty-three million, four hundred four thousand, forty".