398180704 has 12 divisors (see below), whose sum is σ = 783918324. Its totient is φ = 199090336.

The previous prime is 398180689. The next prime is 398180707. The reversal of 398180704 is 407081893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398180707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6221542 + ... + 6221605.

It is an arithmetic number, because the mean of its divisors is an integer number (65326527).

Almost surely, 2^398180704 is an apocalyptic number.

It is an amenable number.

398180704 is a deficient number, since it is larger than the sum of its proper divisors (385737620).

398180704 is a wasteful number, since it uses less digits than its factorization.

398180704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12443157 (or 12443149 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 398180704 is about 19954.4657658380. The cubic root of 398180704 is about 735.6875445927.

The spelling of 398180704 in words is "three hundred ninety-eight million, one hundred eighty thousand, seven hundred four".