381956223 has 12 divisors (see below), whose sum is σ = 559782104. Its totient is φ = 231488400.

The previous prime is 381956219. The next prime is 381956233. The reversal of 381956223 is 322659183.

It is not a de Polignac number, because 381956223 - 2² = 381956219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381956203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 525748 + ... + 526473.

Almost surely, 2^381956223 is an apocalyptic number.

381956223 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

381956223 is a deficient number, since it is larger than the sum of its proper divisors (177825881).

381956223 is a wasteful number, since it uses less digits than its factorization.

381956223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052246 (or 1052235 counting only the distinct ones).

The product of its digits is 77760, while the sum is 39.

The square root of 381956223 is about 19543.7003405189. The cubic root of 381956223 is about 725.5564324443.

The spelling of 381956223 in words is "three hundred eighty-one million, nine hundred fifty-six thousand, two hundred twenty-three".