380905766 has 16 divisors (see below), whose sum is σ = 588128256. Its totient is φ = 184927176.

The previous prime is 380905697. The next prime is 380905771. The reversal of 380905766 is 667509083.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4016 + ... + 27891.

It is an arithmetic number, because the mean of its divisors is an integer number (36758016).

Almost surely, 2^380905766 is an apocalyptic number.

380905766 is a deficient number, since it is larger than the sum of its proper divisors (207222490).

380905766 is a wasteful number, since it uses less digits than its factorization.

380905766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32083.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 380905766 is about 19516.8072696330. The cubic root of 380905766 is about 724.8906793550.

The spelling of 380905766 in words is "three hundred eighty million, nine hundred five thousand, seven hundred sixty-six".