381715228 has 6 divisors (see below), whose sum is σ = 668001656. Its totient is φ = 190857612.

The previous prime is 381715189. The next prime is 381715231. The reversal of 381715228 is 822517183.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47714400 + ... + 47714407.

Almost surely, 2^381715228 is an apocalyptic number.

It is an amenable number.

381715228 is a deficient number, since it is larger than the sum of its proper divisors (286286428).

381715228 is a wasteful number, since it uses less digits than its factorization.

381715228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95428811 (or 95428809 counting only the distinct ones).

The product of its digits is 26880, while the sum is 37.

The square root of 381715228 is about 19537.5338259464. The cubic root of 381715228 is about 725.4038039058.

The spelling of 381715228 in words is "three hundred eighty-one million, seven hundred fifteen thousand, two hundred twenty-eight".