380321800 has 48 divisors (see below), whose sum is σ = 895478400. Its totient is φ = 150196800.

The previous prime is 380321797. The next prime is 380321801. The reversal of 380321800 is 8123083.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (380321801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3765 + ... + 27835.

It is an arithmetic number, because the mean of its divisors is an integer number (18655800).

Almost surely, 2^380321800 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 380321800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (447739200).

380321800 is an abundant number, since it is smaller than the sum of its proper divisors (515156600).

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

380321800 is a wasteful number, since it uses less digits than its factorization.

380321800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24166 (or 24157 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 380321800 is about 19501.8409387422. The cubic root of 380321800 is about 724.5200469845.

Adding to 380321800 its reverse (8123083), we get a palindrome (388444883).

The spelling of 380321800 in words is "three hundred eighty million, three hundred twenty-one thousand, eight hundred".