403233320440 has 32 divisors (see below), whose sum is σ = 928374392880. Its totient is φ = 157542319872.

The previous prime is 403233320429. The next prime is 403233320443. The reversal of 403233320440 is 44023332304.

It is a super-2 number, since 2×403233320440² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 403233320399 and 403233320408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403233320443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117217269 + ... + 117220708.

Almost surely, 2^403233320440 is an apocalyptic number.

403233320440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

403233320440 is an abundant number, since it is smaller than the sum of its proper divisors (525141072440).

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

403233320440 is a wasteful number, since it uses less digits than its factorization.

403233320440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234438031 (or 234438027 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 28.

Adding to 403233320440 its reverse (44023332304), we get a palindrome (447256652744).

The spelling of 403233320440 in words is "four hundred three billion, two hundred thirty-three million, three hundred twenty thousand, four hundred forty".