403302432520240 has 160 divisors (see below), whose sum is σ = 1046766073326336. Its totient is φ = 143237233198080.

The previous prime is 403302432520171. The next prime is 403302432520261. The reversal of 403302432520240 is 42025234203304.

It is a junction number, because it is equal to n+sod(n) for n = 403302432520196 and 403302432520205.

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 31 ways as a sum of consecutive naturals, for example, 737871694 + ... + 738418066.

Almost surely, 2^{403302432520240} is an apocalyptic number.

403302432520240 is a gapful number since it is divisible by the number (40) 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 403302432520240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (523383036663168).

403302432520240 is an abundant number, since it is smaller than the sum of its proper divisors (643463640806096).

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

403302432520240 is a wasteful number, since it uses less digits than its factorization.

403302432520240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565947 (or 565941 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 34.

Adding to 403302432520240 its reverse (42025234203304), we get a palindrome (445327666723544).

The spelling of 403302432520240 in words is "four hundred three trillion, three hundred two billion, four hundred thirty-two million, five hundred twenty thousand, two hundred forty".