405430943880 has 32 divisors (see below), whose sum is σ = 1216292832000. Its totient is φ = 108114918336.

The previous prime is 405430943837. The next prime is 405430943881. The reversal of 405430943880 is 88349034504.

It is not an unprimeable number, because it can be changed into a prime (405430943881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1689295480 + ... + 1689295719.

It is an arithmetic number, because the mean of its divisors is an integer number (38009151000).

Almost surely, 2^405430943880 is an apocalyptic number.

405430943880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

405430943880 is an abundant number, since it is smaller than the sum of its proper divisors (810861888120).

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

405430943880 is a wasteful number, since it uses less digits than its factorization.

405430943880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3378591213 (or 3378591209 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 48.

The spelling of 405430943880 in words is "four hundred five billion, four hundred thirty million, nine hundred forty-three thousand, eight hundred eighty".