100000380 has 48 divisors (see below), whose sum is σ = 280465920. Its totient is φ = 26622528.

The previous prime is 100000379. The next prime is 100000393. The reversal of 100000380 is 83000001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52281 + ... + 54159.

It is an arithmetic number, because the mean of its divisors is an integer number (5843040).

Almost surely, 2^100000380 is an apocalyptic number.

100000380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100000380 is an abundant number, since it is smaller than the sum of its proper divisors (180465540).

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

100000380 is a wasteful number, since it uses less digits than its factorization.

100000380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2778 (or 2776 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 100000380 is about 10000.0189999820. The cubic root of 100000380 is about 464.1594712951.

Adding to 100000380 its reverse (83000001), we get a palindrome (183000381).

The spelling of 100000380 in words is "one hundred million, three hundred eighty", and thus it is an aban number.