396028845 has 20 divisors (see below), whose sum is σ = 709919100. Its totient is φ = 211215168.

The previous prime is 396028823. The next prime is 396028873. The reversal of 396028845 is 548820693.

396028845 is a `hidden beast` number, since 39 + 602 + 8 + 8 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 200420649 + 195608196 = 14157^2 + 13986^2 .

It is not a de Polignac number, because 396028845 - 2⁶ = 396028781 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 396028845.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 488520 + ... + 489329.

It is an arithmetic number, because the mean of its divisors is an integer number (35495955).

Almost surely, 2^396028845 is an apocalyptic number.

It is an amenable number.

396028845 is a deficient number, since it is larger than the sum of its proper divisors (313890255).

396028845 is an equidigital number, since it uses as much as digits as its factorization.

396028845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977866 (or 977857 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 396028845 is about 19900.4734868294. The cubic root of 396028845 is about 734.3598758195.

The spelling of 396028845 in words is "three hundred ninety-six million, twenty-eight thousand, eight hundred forty-five".