380747840 has 112 divisors (see below), whose sum is σ = 1041318720. Its totient is φ = 131143680.

The previous prime is 380747839. The next prime is 380747849. The reversal of 380747840 is 48747083.

It is not an unprimeable number, because it can be changed into a prime (380747849) 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, 64034 + ... + 69726.

Almost surely, 2^380747840 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 380747840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (520659360).

380747840 is an abundant number, since it is smaller than the sum of its proper divisors (660570880).

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

380747840 is a wasteful number, since it uses less digits than its factorization.

380747840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5740 (or 5730 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 41.

The square root of 380747840 is about 19512.7609527714. The cubic root of 380747840 is about 724.7904840481.

The spelling of 380747840 in words is "three hundred eighty million, seven hundred forty-seven thousand, eight hundred forty".