381092691 has 16 divisors (see below), whose sum is σ = 581068544. Its totient is φ = 217633824.

The previous prime is 381092669. The next prime is 381092731. The reversal of 381092691 is 196290183.

It is not a de Polignac number, because 381092691 - 2⁵ = 381092659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (381092191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37161 + ... + 46293.

It is an arithmetic number, because the mean of its divisors is an integer number (36316784).

Almost surely, 2^381092691 is an apocalyptic number.

381092691 is a deficient number, since it is larger than the sum of its proper divisors (199975853).

381092691 is a wasteful number, since it uses less digits than its factorization.

381092691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11130.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 381092691 is about 19521.5955034418. The cubic root of 381092691 is about 725.0092371395.

The spelling of 381092691 in words is "three hundred eighty-one million, ninety-two thousand, six hundred ninety-one".