396819020 has 24 divisors (see below), whose sum is σ = 897422064. Its totient is φ = 146517696.

The previous prime is 396819013. The next prime is 396819029. The reversal of 396819020 is 20918693.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (396819029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 762854 + ... + 763373.

It is an arithmetic number, because the mean of its divisors is an integer number (37392586).

Almost surely, 2^396819020 is an apocalyptic number.

It is an amenable number.

396819020 is an abundant number, since it is smaller than the sum of its proper divisors (500603044).

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

396819020 is a wasteful number, since it uses less digits than its factorization.

396819020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526249 (or 1526247 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 396819020 is about 19920.3167645497. The cubic root of 396819020 is about 734.8479609008.

The spelling of 396819020 in words is "three hundred ninety-six million, eight hundred nineteen thousand, twenty".