406545423340 has 96 divisors (see below), whose sum is σ = 978761355264. Its totient is φ = 138951521280.

The previous prime is 406545423337. The next prime is 406545423343. The reversal of 406545423340 is 43324545604.

It is an interprime number because it is at equal distance from previous prime (406545423337) and next prime (406545423343).

It is a junction number, because it is equal to n+sod(n) for n = 406545423293 and 406545423302.

It is not an unprimeable number, because it can be changed into a prime (406545423343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111963325 + ... + 111966955.

It is an arithmetic number, because the mean of its divisors is an integer number (10195430784).

Almost surely, 2^406545423340 is an apocalyptic number.

It is an amenable number.

406545423340 is an abundant number, since it is smaller than the sum of its proper divisors (572215931924).

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

406545423340 is a wasteful number, since it uses less digits than its factorization.

406545423340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5927 (or 5925 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 40.

Adding to 406545423340 its reverse (43324545604), we get a palindrome (449869968944).

The spelling of 406545423340 in words is "four hundred six billion, five hundred forty-five million, four hundred twenty-three thousand, three hundred forty".