381695776 has 96 divisors (see below), whose sum is σ = 947140992. Its totient is φ = 147087360.

The previous prime is 381695761. The next prime is 381695801. The reversal of 381695776 is 677596183.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 238210 + ... + 239806.

It is an arithmetic number, because the mean of its divisors is an integer number (9866052).

Almost surely, 2^381695776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381695776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (473570496).

381695776 is an abundant number, since it is smaller than the sum of its proper divisors (565445216).

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

381695776 is a wasteful number, since it uses less digits than its factorization.

381695776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722 (or 1714 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 52.

The square root of 381695776 is about 19537.0360085659. The cubic root of 381695776 is about 725.3914816356.

The spelling of 381695776 in words is "three hundred eighty-one million, six hundred ninety-five thousand, seven hundred seventy-six".