403420313344 has 72 divisors (see below), whose sum is σ = 827337288960. Its totient is φ = 196185305088.

The previous prime is 403420313291. The next prime is 403420313377. The reversal of 403420313344 is 443313024304.

It is a super-2 number, since 2×403420313344² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32321697 + ... + 32334175.

It is an arithmetic number, because the mean of its divisors is an integer number (11490795680).

Almost surely, 2^403420313344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 403420313344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (413668644480).

403420313344 is an abundant number, since it is smaller than the sum of its proper divisors (423916975616).

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

403420313344 is a wasteful number, since it uses less digits than its factorization.

403420313344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15945 (or 15931 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 403420313344 its reverse (443313024304), we get a palindrome (846733337648).

The spelling of 403420313344 in words is "four hundred three billion, four hundred twenty million, three hundred thirteen thousand, three hundred forty-four".