405412453240 has 16 divisors (see below), whose sum is σ = 912178019880. Its totient is φ = 162164981280.

The previous prime is 405412453217. The next prime is 405412453249. The reversal of 405412453240 is 42354214504.

It is a junction number, because it is equal to n+sod(n) for n = 405412453196 and 405412453205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405412453249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5067655626 + ... + 5067655705.

Almost surely, 2^405412453240 is an apocalyptic number.

405412453240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

405412453240 is an abundant number, since it is smaller than the sum of its proper divisors (506765566640).

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

405412453240 is a wasteful number, since it uses less digits than its factorization.

405412453240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10135311342 (or 10135311338 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 405412453240 its reverse (42354214504), we get a palindrome (447766667744).

The spelling of 405412453240 in words is "four hundred five billion, four hundred twelve million, four hundred fifty-three thousand, two hundred forty".