381424415 has 4 divisors (see below), whose sum is σ = 457709304. Its totient is φ = 305139528.

The previous prime is 381424357. The next prime is 381424471. The reversal of 381424415 is 514424183.

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-381424415 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38142437 + ... + 38142446.

It is an arithmetic number, because the mean of its divisors is an integer number (114427326).

Almost surely, 2^381424415 is an apocalyptic number.

381424415 is a deficient number, since it is larger than the sum of its proper divisors (76284889).

381424415 is an equidigital number, since it uses as much as digits as its factorization.

381424415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76284888.

The product of its digits is 15360, while the sum is 32.

The square root of 381424415 is about 19530.0899895520. The cubic root of 381424415 is about 725.2195387462.

Adding to 381424415 its reverse (514424183), we get a palindrome (895848598).

The spelling of 381424415 in words is "three hundred eighty-one million, four hundred twenty-four thousand, four hundred fifteen".