381414427 has 4 divisors (see below), whose sum is σ = 381713920. Its totient is φ = 381114936.

The previous prime is 381414413. The next prime is 381414457. The reversal of 381414427 is 724414183.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724414183 = 17 ⋅42612599.

It is a cyclic number.

It is not a de Polignac number, because 381414427 - 2¹⁵ = 381381659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 381414392 and 381414401.

It is not an unprimeable number, because it can be changed into a prime (381414457) 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, 147828 + ... + 150385.

It is an arithmetic number, because the mean of its divisors is an integer number (95428480).

Almost surely, 2^381414427 is an apocalyptic number.

381414427 is a deficient number, since it is larger than the sum of its proper divisors (299493).

381414427 is a wasteful number, since it uses less digits than its factorization.

381414427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299492.

The product of its digits is 21504, while the sum is 34.

The square root of 381414427 is about 19529.8342798909. The cubic root of 381414427 is about 725.2132084785.

The spelling of 381414427 in words is "three hundred eighty-one million, four hundred fourteen thousand, four hundred twenty-seven".