380641623 has 4 divisors (see below), whose sum is σ = 507522168. Its totient is φ = 253761080.

The previous prime is 380641619. The next prime is 380641717. The reversal of 380641623 is 326146083.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 380641623 - 2² = 380641619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380641603) 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 3 ways as a sum of consecutive naturals, for example, 63440268 + ... + 63440273.

It is an arithmetic number, because the mean of its divisors is an integer number (126880542).

Almost surely, 2^380641623 is an apocalyptic number.

380641623 is a deficient number, since it is larger than the sum of its proper divisors (126880545).

380641623 is a wasteful number, since it uses less digits than its factorization.

380641623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126880544.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 380641623 is about 19510.0390312270. The cubic root of 380641623 is about 724.7230796554.

The spelling of 380641623 in words is "three hundred eighty million, six hundred forty-one thousand, six hundred twenty-three".