398404803124 has 12 divisors (see below), whose sum is σ = 697236768004. Its totient is φ = 199194297984.

The previous prime is 398404803107. The next prime is 398404803143. The reversal of 398404803124 is 421308404893.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 73712250000 + 324692553124 = 271500^2 + 569818^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1914597 + ... + 2112460.

Almost surely, 2^398404803124 is an apocalyptic number.

It is an amenable number.

398404803124 is a deficient number, since it is larger than the sum of its proper divisors (298831964880).

398404803124 is a wasteful number, since it uses less digits than its factorization.

398404803124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4051794 (or 4051792 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 398404803124 in words is "three hundred ninety-eight billion, four hundred four million, eight hundred three thousand, one hundred twenty-four".