398230460 has 48 divisors (see below), whose sum is σ = 848050560. Its totient is φ = 157066560.

The previous prime is 398230421. The next prime is 398230463. The reversal of 398230460 is 64032893.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 398230460.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398230463) 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 15 ways as a sum of consecutive naturals, for example, 810815 + ... + 811305.

It is an arithmetic number, because the mean of its divisors is an integer number (17667720).

Almost surely, 2^398230460 is an apocalyptic number.

It is an amenable number.

398230460 is an abundant number, since it is smaller than the sum of its proper divisors (449820100).

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

398230460 is a wasteful number, since it uses less digits than its factorization.

398230460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986 (or 984 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 398230460 is about 19955.7124653569. The cubic root of 398230460 is about 735.7181867480.

The spelling of 398230460 in words is "three hundred ninety-eight million, two hundred thirty thousand, four hundred sixty".