398022020044 has 12 divisors (see below), whose sum is σ = 759860220168. Its totient is φ = 180919100000.

The previous prime is 398022020009. The next prime is 398022020069. The reversal of 398022020044 is 440020220893.

It is a junction number, because it is equal to n+sod(n) for n = 398022019991 and 398022020009.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4522977457 + ... + 4522977544.

It is an arithmetic number, because the mean of its divisors is an integer number (63321685014).

Almost surely, 2^398022020044 is an apocalyptic number.

It is an amenable number.

398022020044 is a deficient number, since it is larger than the sum of its proper divisors (361838200124).

398022020044 is a wasteful number, since it uses less digits than its factorization.

398022020044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9045955016 (or 9045955014 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The spelling of 398022020044 in words is "three hundred ninety-eight billion, twenty-two million, twenty thousand, forty-four".