398219804 has 6 divisors (see below), whose sum is σ = 696884664. Its totient is φ = 199109900.

The previous prime is 398219777. The next prime is 398219813. The reversal of 398219804 is 408912893.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49777472 + ... + 49777479.

It is an arithmetic number, because the mean of its divisors is an integer number (116147444).

Almost surely, 2^398219804 is an apocalyptic number.

It is an amenable number.

398219804 is a deficient number, since it is larger than the sum of its proper divisors (298664860).

398219804 is a wasteful number, since it uses less digits than its factorization.

398219804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99554955 (or 99554953 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 398219804 is about 19955.4454723517. The cubic root of 398219804 is about 735.7116244817.

The spelling of 398219804 in words is "three hundred ninety-eight million, two hundred nineteen thousand, eight hundred four".