381302907 has 4 divisors (see below), whose sum is σ = 508403880. Its totient is φ = 254201936.

The previous prime is 381302897. The next prime is 381302969. The reversal of 381302907 is 709203183.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 381302907 - 2⁴ = 381302891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (381304907) 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 3 ways as a sum of consecutive naturals, for example, 63550482 + ... + 63550487.

It is an arithmetic number, because the mean of its divisors is an integer number (127100970).

Almost surely, 2^381302907 is an apocalyptic number.

381302907 is a deficient number, since it is larger than the sum of its proper divisors (127100973).

381302907 is a wasteful number, since it uses less digits than its factorization.

381302907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127100972.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 381302907 is about 19526.9789522087. The cubic root of 381302907 is about 725.1425210102.

The spelling of 381302907 in words is "three hundred eighty-one million, three hundred two thousand, nine hundred seven".