381280966 has 32 divisors (see below), whose sum is σ = 645765120. Its totient is φ = 167270400.

The previous prime is 381280931. The next prime is 381280969. The reversal of 381280966 is 669082183.

381280966 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381280969) 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, 495430 + ... + 496198.

It is an arithmetic number, because the mean of its divisors is an integer number (20180160).

Almost surely, 2^381280966 is an apocalyptic number.

381280966 is a deficient number, since it is larger than the sum of its proper divisors (264484154).

381280966 is a wasteful number, since it uses less digits than its factorization.

381280966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 381280966 is about 19526.4171316706. The cubic root of 381280966 is about 725.1286119833.

The spelling of 381280966 in words is "three hundred eighty-one million, two hundred eighty thousand, nine hundred sixty-six".