381668576 has 24 divisors (see below), whose sum is σ = 767400480. Its totient is φ = 186773248.

The previous prime is 381668569. The next prime is 381668587. The reversal of 381668576 is 675866183.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 125381 + ... + 128388.

It is an arithmetic number, because the mean of its divisors is an integer number (31975020).

Almost surely, 2^381668576 is an apocalyptic number.

It is an amenable number.

381668576 is an abundant number, since it is smaller than the sum of its proper divisors (385731904).

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

381668576 is a wasteful number, since it uses less digits than its factorization.

381668576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253826 (or 253818 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 50.

The square root of 381668576 is about 19536.3398823833. The cubic root of 381668576 is about 725.3742505332.

The spelling of 381668576 in words is "three hundred eighty-one million, six hundred sixty-eight thousand, five hundred seventy-six".