380421816720 has 320 divisors, whose sum is σ = 1400931763200. Its totient is φ = 84356536320.

The previous prime is 380421816713. The next prime is 380421816737. The reversal of 380421816720 is 27618124083.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1323879 + ... + 1585401.

It is an arithmetic number, because the mean of its divisors is an integer number (4377911760).

Almost surely, 2^380421816720 is an apocalyptic number.

380421816720 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 380421816720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (700465881600).

380421816720 is an abundant number, since it is smaller than the sum of its proper divisors (1020509946480).

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

380421816720 is a wasteful number, since it uses less digits than its factorization.

380421816720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261598 (or 261592 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 380421816720 in words is "three hundred eighty billion, four hundred twenty-one million, eight hundred sixteen thousand, seven hundred twenty".