403444402340 has 24 divisors (see below), whose sum is σ = 968266565952. Its totient is φ = 138323795040.

The previous prime is 403444402297. The next prime is 403444402343. The reversal of 403444402340 is 43204444304.

It is a junction number, because it is equal to n+sod(n) for n = 403444402297 and 403444402306.

It is not an unprimeable number, because it can be changed into a prime (403444402343) by changing a digit.

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, 1440872726 + ... + 1440873005.

It is an arithmetic number, because the mean of its divisors is an integer number (40344440248).

Almost surely, 2^403444402340 is an apocalyptic number.

It is an amenable number.

403444402340 is an abundant number, since it is smaller than the sum of its proper divisors (564822163612).

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

403444402340 is a wasteful number, since it uses less digits than its factorization.

403444402340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2881745747 (or 2881745745 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 32.

Adding to 403444402340 its reverse (43204444304), we get a palindrome (446648846644).

The spelling of 403444402340 in words is "four hundred three billion, four hundred forty-four million, four hundred two thousand, three hundred forty".