383975945 has 8 divisors (see below), whose sum is σ = 466604160. Its totient is φ = 303292080.

The previous prime is 383975941. The next prime is 383975981. The reversal of 383975945 is 549579383.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 383975945 - 2² = 383975941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (383975941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 485651 + ... + 486440.

It is an arithmetic number, because the mean of its divisors is an integer number (58325520).

Almost surely, 2^383975945 is an apocalyptic number.

It is an amenable number.

383975945 is a deficient number, since it is larger than the sum of its proper divisors (82628215).

383975945 is an equidigital number, since it uses as much as digits as its factorization.

383975945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972175.

The product of its digits is 4082400, while the sum is 53.

The square root of 383975945 is about 19595.3041568637. The cubic root of 383975945 is about 726.8330594424.

The spelling of 383975945 in words is "three hundred eighty-three million, nine hundred seventy-five thousand, nine hundred forty-five".