380143912 has 8 divisors (see below), whose sum is σ = 712769850. Its totient is φ = 190071952.

The previous prime is 380143891. The next prime is 380143913. The reversal of 380143912 is 219341083.

It can be written as a sum of positive squares in only one way, i.e., 239816196 + 140327716 = 15486^2 + 11846^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (380143913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23758987 + ... + 23759002.

Almost surely, 2^380143912 is an apocalyptic number.

It is an amenable number.

380143912 is a deficient number, since it is larger than the sum of its proper divisors (332625938).

380143912 is a wasteful number, since it uses less digits than its factorization.

380143912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47517995 (or 47517991 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 380143912 is about 19497.2796051141. The cubic root of 380143912 is about 724.4070693941.

Adding to 380143912 its reverse (219341083), we get a palindrome (599484995).

The spelling of 380143912 in words is "three hundred eighty million, one hundred forty-three thousand, nine hundred twelve".