398842904004 has 12 divisors (see below), whose sum is σ = 930633442704. Its totient is φ = 132947634664.

The previous prime is 398842903897. The next prime is 398842904011. The reversal of 398842904004 is 400409248893.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16618454322 + ... + 16618454345.

It is an arithmetic number, because the mean of its divisors is an integer number (77552786892).

Almost surely, 2^398842904004 is an apocalyptic number.

It is an amenable number.

398842904004 is an abundant number, since it is smaller than the sum of its proper divisors (531790538700).

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

398842904004 is a wasteful number, since it uses less digits than its factorization.

398842904004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33236908674 (or 33236908672 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 51.

The spelling of 398842904004 in words is "three hundred ninety-eight billion, eight hundred forty-two million, nine hundred four thousand, four".