394248121924 has 24 divisors (see below), whose sum is σ = 700463836800. Its totient is φ = 194128428000.

The previous prime is 394248121921. The next prime is 394248121933. The reversal of 394248121924 is 429121842493.

It is not an unprimeable number, because it can be changed into a prime (394248121921) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1480702 + ... + 1726549.

It is an arithmetic number, because the mean of its divisors is an integer number (29185993200).

Almost surely, 2^394248121924 is an apocalyptic number.

It is an amenable number.

394248121924 is a deficient number, since it is larger than the sum of its proper divisors (306215714876).

394248121924 is a wasteful number, since it uses less digits than its factorization.

394248121924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207723 (or 3207721 counting only the distinct ones).

The product of its digits is 995328, while the sum is 49.

The spelling of 394248121924 in words is "three hundred ninety-four billion, two hundred forty-eight million, one hundred twenty-one thousand, nine hundred twenty-four".