381364907 has 16 divisors (see below), whose sum is σ = 477464064. Its totient is φ = 295920000.

The previous prime is 381364901. The next prime is 381364939. The reversal of 381364907 is 709463183.

It is a cyclic number.

It is not a de Polignac number, because 381364907 - 2⁶ = 381364843 is a prime.

It is a super-2 number, since 2×381364907² = 290878384582237298, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (381364901) 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, 8282 + ... + 28832.

It is an arithmetic number, because the mean of its divisors is an integer number (29841504).

Almost surely, 2^381364907 is an apocalyptic number.

381364907 is a deficient number, since it is larger than the sum of its proper divisors (96099157).

381364907 is a wasteful number, since it uses less digits than its factorization.

381364907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20810.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 381364907 is about 19528.5664348410. The cubic root of 381364907 is about 725.1818216982.

The spelling of 381364907 in words is "three hundred eighty-one million, three hundred sixty-four thousand, nine hundred seven".