398445476 has 48 divisors (see below), whose sum is σ = 822212160. Its totient is φ = 166561920.

The previous prime is 398445451. The next prime is 398445479. The reversal of 398445476 is 674544893.

It is not an unprimeable number, because it can be changed into a prime (398445479) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 174470 + ... + 176738.

It is an arithmetic number, because the mean of its divisors is an integer number (17129420).

Almost surely, 2^398445476 is an apocalyptic number.

It is an amenable number.

398445476 is an abundant number, since it is smaller than the sum of its proper divisors (423766684).

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

398445476 is a wasteful number, since it uses less digits than its factorization.

398445476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2604 (or 2602 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 50.

The square root of 398445476 is about 19961.0990679371. The cubic root of 398445476 is about 735.8505746786.

The spelling of 398445476 in words is "three hundred ninety-eight million, four hundred forty-five thousand, four hundred seventy-six".