398445068 has 36 divisors (see below), whose sum is σ = 812332080. Its totient is φ = 170507232.

The previous prime is 398445053. The next prime is 398445083. The reversal of 398445068 is 860544893.

It is an interprime number because it is at equal distance from previous prime (398445053) and next prime (398445083).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 194393 + ... + 196431.

It is an arithmetic number, because the mean of its divisors is an integer number (22564780).

Almost surely, 2^398445068 is an apocalyptic number.

It is an amenable number.

398445068 is an abundant number, since it is smaller than the sum of its proper divisors (413887012).

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

398445068 is a wasteful number, since it uses less digits than its factorization.

398445068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3054 (or 3045 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 398445068 is about 19961.0888480564. The cubic root of 398445068 is about 735.8503235132.

The spelling of 398445068 in words is "three hundred ninety-eight million, four hundred forty-five thousand, sixty-eight".