381941669 has 8 divisors (see below), whose sum is σ = 417454848. Its totient is φ = 347878080.

The previous prime is 381941653. The next prime is 381941699. The reversal of 381941669 is 966149183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 381941669 - 2⁴ = 381941653 is a prime.

It is a super-2 number, since 2×381941669² = 291758877037011122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381941699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361847 + ... + 362900.

It is an arithmetic number, because the mean of its divisors is an integer number (52181856).

Almost surely, 2^381941669 is an apocalyptic number.

It is an amenable number.

381941669 is a deficient number, since it is larger than the sum of its proper divisors (35513179).

381941669 is a wasteful number, since it uses less digits than its factorization.

381941669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724795.

The product of its digits is 279936, while the sum is 47.

The square root of 381941669 is about 19543.3279919260. The cubic root of 381941669 is about 725.5472168311.

The spelling of 381941669 in words is "three hundred eighty-one million, nine hundred forty-one thousand, six hundred sixty-nine".