381688575 has 48 divisors (see below), whose sum is σ = 659020320. Its totient is φ = 194682880.

The previous prime is 381688561. The next prime is 381688577. The reversal of 381688575 is 575886183.

It is not a de Polignac number, because 381688575 - 2¹⁴ = 381672191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381688577) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 244999 + ... + 246551.

It is an arithmetic number, because the mean of its divisors is an integer number (13729590).

Almost surely, 2^381688575 is an apocalyptic number.

381688575 is a deficient number, since it is larger than the sum of its proper divisors (277331745).

381688575 is a wasteful number, since it uses less digits than its factorization.

381688575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708 (or 1703 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 51.

The square root of 381688575 is about 19536.8517166917. The cubic root of 381688575 is about 725.3869199076.

The spelling of 381688575 in words is "three hundred eighty-one million, six hundred eighty-eight thousand, five hundred seventy-five".