381387224 has 16 divisors (see below), whose sum is σ = 715488120. Its totient is φ = 190590400.

The previous prime is 381387199. The next prime is 381387257. The reversal of 381387224 is 422783183.

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, 4124 + ... + 27924.

Almost surely, 2^381387224 is an apocalyptic number.

It is an amenable number.

381387224 is a deficient number, since it is larger than the sum of its proper divisors (334100896).

381387224 is a wasteful number, since it uses less digits than its factorization.

381387224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25810 (or 25806 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 381387224 is about 19529.1378201906. The cubic root of 381387224 is about 725.1959670017.

The spelling of 381387224 in words is "three hundred eighty-one million, three hundred eighty-seven thousand, two hundred twenty-four".