396045220 has 12 divisors (see below), whose sum is σ = 831695004. Its totient is φ = 158418080.

The previous prime is 396045187. The next prime is 396045233. The reversal of 396045220 is 22540693.

It can be written as a sum of positive squares in 2 ways, for example, as 206267044 + 189778176 = 14362^2 + 13776^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9901111 + ... + 9901150.

It is an arithmetic number, because the mean of its divisors is an integer number (69307917).

Almost surely, 2^396045220 is an apocalyptic number.

It is an amenable number.

396045220 is an abundant number, since it is smaller than the sum of its proper divisors (435649784).

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

396045220 is a wasteful number, since it uses less digits than its factorization.

396045220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19802270 (or 19802268 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 396045220 is about 19900.8849049483. The cubic root of 396045220 is about 734.3699971170.

The spelling of 396045220 in words is "three hundred ninety-six million, forty-five thousand, two hundred twenty".