405320832 has 96 divisors (see below), whose sum is σ = 1333001280. Its totient is φ = 115803648.

The previous prime is 405320827. The next prime is 405320833. The reversal of 405320832 is 238023504.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 405320796 and 405320805.

It is not an unprimeable number, because it can be changed into a prime (405320833) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17068 + ... + 33195.

It is an arithmetic number, because the mean of its divisors is an integer number (13885430).

Almost surely, 2^405320832 is an apocalyptic number.

405320832 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

405320832 is an abundant number, since it is smaller than the sum of its proper divisors (927680448).

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

405320832 is a wasteful number, since it uses less digits than its factorization.

405320832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50290 (or 50275 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 405320832 is about 20132.5813546102. The cubic root of 405320832 is about 740.0589385732.

The spelling of 405320832 in words is "four hundred five million, three hundred twenty thousand, eight hundred thirty-two".