380691311 has 16 divisors (see below), whose sum is σ = 511139328. Its totient is φ = 273823200.

The previous prime is 380691299. The next prime is 380691343. The reversal of 380691311 is 113196083.

It is not a de Polignac number, because 380691311 - 2⁶ = 380691247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380601311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189155 + ... + 191156.

It is an arithmetic number, because the mean of its divisors is an integer number (31946208).

Almost surely, 2^380691311 is an apocalyptic number.

380691311 is a deficient number, since it is larger than the sum of its proper divisors (130448017).

380691311 is a wasteful number, since it uses less digits than its factorization.

380691311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380342.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 380691311 is about 19511.3123853830. The cubic root of 380691311 is about 724.7546127926.

The spelling of 380691311 in words is "three hundred eighty million, six hundred ninety-one thousand, three hundred eleven".