381173776 has 10 divisors (see below), whose sum is σ = 738524222. Its totient is φ = 190586880.

The previous prime is 381173743. The next prime is 381173777. The reversal of 381173776 is 677371183.

It can be written as a sum of positive squares in only one way, i.e., 268304400 + 112869376 = 16380^2 + 10624^2 .

It is not an unprimeable number, because it can be changed into a prime (381173777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11911665 + ... + 11911696.

Almost surely, 2^381173776 is an apocalyptic number.

It is an amenable number.

381173776 is a deficient number, since it is larger than the sum of its proper divisors (357350446).

381173776 is a wasteful number, since it uses less digits than its factorization.

381173776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23823369 (or 23823363 counting only the distinct ones).

The product of its digits is 148176, while the sum is 43.

The square root of 381173776 is about 19523.6721955681. The cubic root of 381173776 is about 725.0606535066.

The spelling of 381173776 in words is "three hundred eighty-one million, one hundred seventy-three thousand, seven hundred seventy-six".