405828860 has 12 divisors (see below), whose sum is σ = 852240648. Its totient is φ = 162331536.

The previous prime is 405828853. The next prime is 405828869. The reversal of 405828860 is 68828504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405828869) 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, 10145702 + ... + 10145741.

It is an arithmetic number, because the mean of its divisors is an integer number (71020054).

Almost surely, 2^405828860 is an apocalyptic number.

It is an amenable number.

405828860 is an abundant number, since it is smaller than the sum of its proper divisors (446411788).

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

405828860 is a wasteful number, since it uses less digits than its factorization.

405828860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20291452 (or 20291450 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 41.

The square root of 405828860 is about 20145.1944641892. The cubic root of 405828860 is about 740.3680054176.

The spelling of 405828860 in words is "four hundred five million, eight hundred twenty-eight thousand, eight hundred sixty".