380775648 has 96 divisors (see below), whose sum is σ = 1100397312. Its totient is φ = 114329600.

The previous prime is 380775641. The next prime is 380775667. The reversal of 380775648 is 846577083.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 380775597 and 380775606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380775641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117733 + ... + 120923.

It is an arithmetic number, because the mean of its divisors is an integer number (11462472).

Almost surely, 2^380775648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 380775648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (550198656).

380775648 is an abundant number, since it is smaller than the sum of its proper divisors (719621664).

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

380775648 is a wasteful number, since it uses less digits than its factorization.

380775648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3328 (or 3320 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The square root of 380775648 is about 19513.4734990980. The cubic root of 380775648 is about 724.8081286946.

The spelling of 380775648 in words is "three hundred eighty million, seven hundred seventy-five thousand, six hundred forty-eight".