205378379 has 8 divisors (see below), whose sum is σ = 217734528. Its totient is φ = 193380480.

The previous prime is 205378373. The next prime is 205378387. The reversal of 205378379 is 973873502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-205378379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205378373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88382 + ... + 90675.

It is an arithmetic number, because the mean of its divisors is an integer number (27216816).

Almost surely, 2^205378379 is an apocalyptic number.

205378379 is a deficient number, since it is larger than the sum of its proper divisors (12356149).

205378379 is a wasteful number, since it uses less digits than its factorization.

205378379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179125.

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 205378379 is about 14331.0285395013. The cubic root of 205378379 is about 589.9994053427. Note that the first 3 decimals are identical.

The spelling of 205378379 in words is "two hundred five million, three hundred seventy-eight thousand, three hundred seventy-nine".