380557943 has 4 divisors (see below), whose sum is σ = 380604120. Its totient is φ = 380511768.

The previous prime is 380557939. The next prime is 380557963. The reversal of 380557943 is 349755083.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 349755083 = 4289 ⋅81547.

It is a cyclic number.

It is not a de Polignac number, because 380557943 - 2² = 380557939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 380557894 and 380557903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380557963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6980 + ... + 28457.

It is an arithmetic number, because the mean of its divisors is an integer number (95151030).

Almost surely, 2^380557943 is an apocalyptic number.

380557943 is a deficient number, since it is larger than the sum of its proper divisors (46177).

380557943 is a wasteful number, since it uses less digits than its factorization.

380557943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46176.

The product of its (nonzero) digits is 453600, while the sum is 44.

The square root of 380557943 is about 19507.8943763800. The cubic root of 380557943 is about 724.6699682174.

The spelling of 380557943 in words is "three hundred eighty million, five hundred fifty-seven thousand, nine hundred forty-three".