380343279 has 4 divisors (see below), whose sum is σ = 507124376. Its totient is φ = 253562184.

The previous prime is 380343269. The next prime is 380343281. The reversal of 380343279 is 972343083.

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

It is not a de Polignac number, because 380343279 - 2⁴ = 380343263 is a prime.

It is a super-2 number, since 2×380343279² = 289322019760943682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380343269) 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, 63390544 + ... + 63390549.

It is an arithmetic number, because the mean of its divisors is an integer number (126781094).

Almost surely, 2^380343279 is an apocalyptic number.

380343279 is a deficient number, since it is larger than the sum of its proper divisors (126781097).

380343279 is a wasteful number, since it uses less digits than its factorization.

380343279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126781096.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 380343279 is about 19502.3916225677. The cubic root of 380343279 is about 724.5336860248.

The spelling of 380343279 in words is "three hundred eighty million, three hundred forty-three thousand, two hundred seventy-nine".