381227969 has 8 divisors (see below), whose sum is σ = 388043520. Its totient is φ = 374424336.

The previous prime is 381227953. The next prime is 381227971. The reversal of 381227969 is 969722183.

It is a happy number.

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 381227969 - 2⁴ = 381227953 is a prime.

It is a super-2 number, since 2×381227969² = 290669528695729922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381227929) 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, 83504 + ... + 87950.

It is an arithmetic number, because the mean of its divisors is an integer number (48505440).

Almost surely, 2^381227969 is an apocalyptic number.

It is an amenable number.

381227969 is a deficient number, since it is larger than the sum of its proper divisors (6815551).

381227969 is a wasteful number, since it uses less digits than its factorization.

381227969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5959.

The product of its digits is 326592, while the sum is 47.

The square root of 381227969 is about 19525.0600255159. The cubic root of 381227969 is about 725.0950134692.

The spelling of 381227969 in words is "three hundred eighty-one million, two hundred twenty-seven thousand, nine hundred sixty-nine".