380128265 has 8 divisors (see below), whose sum is σ = 497622528. Its totient is φ = 276456880.

The previous prime is 380128241. The next prime is 380128277. The reversal of 380128265 is 562821083.

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

It is not a de Polignac number, because 380128265 - 2¹⁶ = 380062729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3455657 + ... + 3455766.

It is an arithmetic number, because the mean of its divisors is an integer number (62202816).

Almost surely, 2^380128265 is an apocalyptic number.

It is an amenable number.

380128265 is a deficient number, since it is larger than the sum of its proper divisors (117494263).

380128265 is a wasteful number, since it uses less digits than its factorization.

380128265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6911439.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 380128265 is about 19496.8783398779. The cubic root of 380128265 is about 724.3971302171.

The spelling of 380128265 in words is "three hundred eighty million, one hundred twenty-eight thousand, two hundred sixty-five".