398811344 has 10 divisors (see below), whose sum is σ = 772697010. Its totient is φ = 199405664.

The previous prime is 398811317. The next prime is 398811377. The reversal of 398811344 is 443118893.

It can be written as a sum of positive squares in only one way, i.e., 259854400 + 138956944 = 16120^2 + 11788^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12462839 + ... + 12462870.

It is an arithmetic number, because the mean of its divisors is an integer number (77269701).

Almost surely, 2^398811344 is an apocalyptic number.

It is an amenable number.

398811344 is a deficient number, since it is larger than the sum of its proper divisors (373885666).

398811344 is a wasteful number, since it uses less digits than its factorization.

398811344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24925717 (or 24925711 counting only the distinct ones).

The product of its digits is 82944, while the sum is 41.

The square root of 398811344 is about 19970.2614905264. The cubic root of 398811344 is about 736.0757345664.

The spelling of 398811344 in words is "three hundred ninety-eight million, eight hundred eleven thousand, three hundred forty-four".