381127648 has 48 divisors (see below), whose sum is σ = 820154160. Its totient is φ = 172902400.

The previous prime is 381127603. The next prime is 381127667. The reversal of 381127648 is 846721183.

It is a self number, because there is not a number n which added to its sum of digits gives 381127648.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309498 + ... + 310726.

It is an arithmetic number, because the mean of its divisors is an integer number (17086545).

Almost surely, 2^381127648 is an apocalyptic number.

It is an amenable number.

381127648 is an abundant number, since it is smaller than the sum of its proper divisors (439026512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

381127648 is a wasteful number, since it uses less digits than its factorization.

381127648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131 (or 2123 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 381127648 is about 19522.4908246873. The cubic root of 381127648 is about 725.0314044264.

The spelling of 381127648 in words is "three hundred eighty-one million, one hundred twenty-seven thousand, six hundred forty-eight".