381669323 has 4 divisors (see below), whose sum is σ = 436193520. Its totient is φ = 327145128.

The previous prime is 381669317. The next prime is 381669341. The reversal of 381669323 is 323966183.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-381669323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (381669823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27262088 + ... + 27262101.

It is an arithmetic number, because the mean of its divisors is an integer number (109048380).

Almost surely, 2^381669323 is an apocalyptic number.

381669323 is a deficient number, since it is larger than the sum of its proper divisors (54524197).

381669323 is an equidigital number, since it uses as much as digits as its factorization.

381669323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54524196.

The product of its digits is 139968, while the sum is 41.

The square root of 381669323 is about 19536.3590005917. The cubic root of 381669323 is about 725.3747237660.

The spelling of 381669323 in words is "three hundred eighty-one million, six hundred sixty-nine thousand, three hundred twenty-three".