406555016 has 64 divisors (see below), whose sum is σ = 900910080. Its totient is φ = 168376320.

The previous prime is 406554977. The next prime is 406555043. The reversal of 406555016 is 610555604.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258665 + ... + 260231.

It is an arithmetic number, because the mean of its divisors is an integer number (14076720).

Almost surely, 2^406555016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 406555016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (450455040).

406555016 is an abundant number, since it is smaller than the sum of its proper divisors (494355064).

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

406555016 is a wasteful number, since it uses less digits than its factorization.

406555016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1734 (or 1730 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 406555016 is about 20163.2094667491. The cubic root of 406555016 is about 740.8093263632.

The spelling of 406555016 in words is "four hundred six million, five hundred fifty-five thousand, sixteen".