384131475 has 144 divisors (see below), whose sum is σ = 861736512. Its totient is φ = 159252480.

The previous prime is 384131459. The next prime is 384131479. The reversal of 384131475 is 574131483.

It is a happy number.

It is not a de Polignac number, because 384131475 - 2⁴ = 384131459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (384131479) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1494547 + ... + 1494803.

Almost surely, 2^384131475 is an apocalyptic number.

384131475 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

384131475 is an abundant number, since it is smaller than the sum of its proper divisors (477605037).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

384131475 is a wasteful number, since it uses less digits than its factorization.

384131475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366 (or 358 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 384131475 is about 19599.2723079200. The cubic root of 384131475 is about 726.9311811153.

The spelling of 384131475 in words is "three hundred eighty-four million, one hundred thirty-one thousand, four hundred seventy-five".