398760000000 has 320 divisors, whose sum is σ = 1328298162048. Its totient is φ = 106304000000.

The previous prime is 398759999933. The next prime is 398760000029. The reversal of 398760000000 is 67893.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (320).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119998339 + ... + 120001661.

Almost surely, 2^398760000000 is an apocalyptic number.

398760000000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 398760000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (664149081024).

398760000000 is an abundant number, since it is smaller than the sum of its proper divisors (929538162048).

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

398760000000 is an frugal number, since it uses more digits than its factorization.

398760000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3379 (or 3333 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

Adding to 398760000000 its reverse (67893), we get a palindrome (398760067893).

The spelling of 398760000000 in words is "three hundred ninety-eight billion, seven hundred sixty million", and thus it is an aban number.