381224423 has 4 divisors (see below), whose sum is σ = 381615600. Its totient is φ = 380833248.

The previous prime is 381224419. The next prime is 381224447. The reversal of 381224423 is 324422183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324422183 = 83 ⋅3908701.

It is a cyclic number.

It is not a de Polignac number, because 381224423 - 2² = 381224419 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 (381224413) 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, 194123 + ... + 196076.

It is an arithmetic number, because the mean of its divisors is an integer number (95403900).

Almost surely, 2^381224423 is an apocalyptic number.

381224423 is a deficient number, since it is larger than the sum of its proper divisors (391177).

381224423 is an equidigital number, since it uses as much as digits as its factorization.

381224423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391176.

The product of its digits is 9216, while the sum is 29.

The square root of 381224423 is about 19524.9692189258. The cubic root of 381224423 is about 725.0927653000.

The spelling of 381224423 in words is "three hundred eighty-one million, two hundred twenty-four thousand, four hundred twenty-three".