380849920 has 108 divisors (see below), whose sum is σ = 1003133880. Its totient is φ = 138434560.

The previous prime is 380849879. The next prime is 380849923. The reversal of 380849920 is 29948083.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380849923) 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 11 ways as a sum of consecutive naturals, for example, 153651 + ... + 156109.

Almost surely, 2^380849920 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 380849920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (501566940).

380849920 is an abundant number, since it is smaller than the sum of its proper divisors (622283960).

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

380849920 is a wasteful number, since it uses less digits than its factorization.

380849920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502 (or 2477 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 380849920 is about 19515.3765016205. The cubic root of 380849920 is about 724.8552513243.

The spelling of 380849920 in words is "three hundred eighty million, eight hundred forty-nine thousand, nine hundred twenty".