380297680 has 80 divisors (see below), whose sum is σ = 1032076800. Its totient is φ = 127604736.

The previous prime is 380297653. The next prime is 380297683. The reversal of 380297680 is 86792083.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380297683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19096 + ... + 33544.

It is an arithmetic number, because the mean of its divisors is an integer number (12900960).

Almost surely, 2^380297680 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 380297680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (516038400).

380297680 is an abundant number, since it is smaller than the sum of its proper divisors (651779120).

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

380297680 is a wasteful number, since it uses less digits than its factorization.

380297680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14516 (or 14510 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 380297680 is about 19501.2225257803. Note that the first 3 decimals coincide. The cubic root of 380297680 is about 724.5047303123.

The spelling of 380297680 in words is "three hundred eighty million, two hundred ninety-seven thousand, six hundred eighty".