380099860 has 36 divisors (see below), whose sum is σ = 928532052. Its totient is φ = 130319616.

The previous prime is 380099813. The next prime is 380099861. The reversal of 380099860 is 68990083.

It can be written as a sum of positive squares in 2 ways, for example, as 86936976 + 293162884 = 9324^2 + 17122^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380099861) 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, 192949 + ... + 194908.

It is an arithmetic number, because the mean of its divisors is an integer number (25792557).

Almost surely, 2^380099860 is an apocalyptic number.

It is an amenable number.

380099860 is an abundant number, since it is smaller than the sum of its proper divisors (548432192).

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

380099860 is a wasteful number, since it uses less digits than its factorization.

380099860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387880 (or 387871 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 380099860 is about 19496.1498763217. The cubic root of 380099860 is about 724.3790862962.

The spelling of 380099860 in words is "three hundred eighty million, ninety-nine thousand, eight hundred sixty".