405482319820 has 24 divisors (see below), whose sum is σ = 852076477728. Its totient is φ = 162085574400.

The previous prime is 405482319793. The next prime is 405482319833. The reversal of 405482319820 is 28913284504.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6678621 + ... + 6739060.

It is an arithmetic number, because the mean of its divisors is an integer number (35503186572).

Almost surely, 2^405482319820 is an apocalyptic number.

It is an amenable number.

405482319820 is an abundant number, since it is smaller than the sum of its proper divisors (446594157908).

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

405482319820 is a wasteful number, since it uses less digits than its factorization.

405482319820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13419201 (or 13419199 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 405482319820 in words is "four hundred five billion, four hundred eighty-two million, three hundred nineteen thousand, eight hundred twenty".