398244845 has 8 divisors (see below), whose sum is σ = 503046240. Its totient is φ = 301827600.

The previous prime is 398244827. The next prime is 398244853. The reversal of 398244845 is 548442893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 398244845 - 2¹⁰ = 398243821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 398244845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2095931 + ... + 2096120.

It is an arithmetic number, because the mean of its divisors is an integer number (62880780).

Almost surely, 2^398244845 is an apocalyptic number.

It is an amenable number.

398244845 is a deficient number, since it is larger than the sum of its proper divisors (104801395).

398244845 is a wasteful number, since it uses less digits than its factorization.

398244845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4192075.

The product of its digits is 1105920, while the sum is 47.

The square root of 398244845 is about 19956.0728852147. The cubic root of 398244845 is about 735.7270452522.

The spelling of 398244845 in words is "three hundred ninety-eight million, two hundred forty-four thousand, eight hundred forty-five".