380143911 has 24 divisors (see below), whose sum is σ = 592945920. Its totient is φ = 215996592.

The previous prime is 380143891. The next prime is 380143913. The reversal of 380143911 is 119341083.

It is not a de Polignac number, because 380143911 - 2⁶ = 380143847 is a prime.

It is a congruent number.

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 (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19090 + ... + 33536.

It is an arithmetic number, because the mean of its divisors is an integer number (24706080).

Almost surely, 2^380143911 is an apocalyptic number.

380143911 is a deficient number, since it is larger than the sum of its proper divisors (212802009).

380143911 is a wasteful number, since it uses less digits than its factorization.

380143911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14643 (or 14636 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 380143911 is about 19497.2795794695. The cubic root of 380143911 is about 724.4070687589.

Adding to 380143911 its reverse (119341083), we get a palindrome (499484994).

The spelling of 380143911 in words is "three hundred eighty million, one hundred forty-three thousand, nine hundred eleven".