398218240024 has 16 divisors (see below), whose sum is σ = 814537309320. Its totient is φ = 181008290880.

The previous prime is 398218239997. The next prime is 398218240031. The reversal of 398218240024 is 420042812893.

It is a happy number.

It is a congruent number.

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, 2262603549 + ... + 2262603724.

Almost surely, 2^398218240024 is an apocalyptic number.

It is an amenable number.

398218240024 is an abundant number, since it is smaller than the sum of its proper divisors (416319069296).

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

398218240024 is a wasteful number, since it uses less digits than its factorization.

398218240024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4525207290 (or 4525207286 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The spelling of 398218240024 in words is "three hundred ninety-eight billion, two hundred eighteen million, two hundred forty thousand, twenty-four".