403340405023240 has 64 divisors (see below), whose sum is σ = 913048119466560. Its totient is φ = 160353243682560.

The previous prime is 403340405023189. The next prime is 403340405023247. The reversal of 403340405023240 is 42320504043304.

It is a super-2 number, since 2×403340405023240² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 403340405023196 and 403340405023205.

It is not an unprimeable number, because it can be changed into a prime (403340405023247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12909675 + ... + 31198405.

It is an arithmetic number, because the mean of its divisors is an integer number (14266376866665).

Almost surely, 2^{403340405023240} is an apocalyptic number.

403340405023240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

403340405023240 is an abundant number, since it is smaller than the sum of its proper divisors (509707714443320).

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

403340405023240 is a wasteful number, since it uses less digits than its factorization.

403340405023240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18292102 (or 18292098 counting only the distinct ones).

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

Adding to 403340405023240 its reverse (42320504043304), we get a palindrome (445660909066544).

The spelling of 403340405023240 in words is "four hundred three trillion, three hundred forty billion, four hundred five million, twenty-three thousand, two hundred forty".