405321233540 has 48 divisors (see below), whose sum is σ = 880607004480. Its totient is φ = 156523355520.

The previous prime is 405321233533. The next prime is 405321233609. The reversal of 405321233540 is 45332123504.

It is a junction number, because it is equal to n+sod(n) for n = 405321233497 and 405321233506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7915259 + ... + 7966301.

It is an arithmetic number, because the mean of its divisors is an integer number (18345979260).

Almost surely, 2^405321233540 is an apocalyptic number.

It is an amenable number.

405321233540 is an abundant number, since it is smaller than the sum of its proper divisors (475285770940).

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

405321233540 is a wasteful number, since it uses less digits than its factorization.

405321233540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64772 (or 64770 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

The spelling of 405321233540 in words is "four hundred five billion, three hundred twenty-one million, two hundred thirty-three thousand, five hundred forty".