380420665548 has 288 divisors, whose sum is σ = 1193339669760. Its totient is φ = 93009047040.

The previous prime is 380420665487. The next prime is 380420665591. The reversal of 380420665548 is 845566024083.

It is a self number, because there is not a number n which added to its sum of digits gives 380420665548.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 19284186 + ... + 19303902.

It is an arithmetic number, because the mean of its divisors is an integer number (4143540520).

Almost surely, 2^380420665548 is an apocalyptic number.

380420665548 is a gapful number since it is divisible by the number (38) 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 380420665548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (596669834880).

380420665548 is an abundant number, since it is smaller than the sum of its proper divisors (812919004212).

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

380420665548 is a wasteful number, since it uses less digits than its factorization.

380420665548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19925 (or 19916 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 51.

The spelling of 380420665548 in words is "three hundred eighty billion, four hundred twenty million, six hundred sixty-five thousand, five hundred forty-eight".