381224879 has 8 divisors (see below), whose sum is σ = 436455840. Its totient is φ = 326186496.

The previous prime is 381224869. The next prime is 381224903. The reversal of 381224879 is 978422183.

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 381224879 - 2¹² = 381220783 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 (381224869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43874 + ... + 51839.

It is an arithmetic number, because the mean of its divisors is an integer number (54556980).

Almost surely, 2^381224879 is an apocalyptic number.

381224879 is a deficient number, since it is larger than the sum of its proper divisors (55230961).

381224879 is an equidigital number, since it uses as much as digits as its factorization.

381224879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96289.

The product of its digits is 193536, while the sum is 44.

The square root of 381224879 is about 19524.9808962775. The cubic root of 381224879 is about 725.0930544055.

The spelling of 381224879 in words is "three hundred eighty-one million, two hundred twenty-four thousand, eight hundred seventy-nine".