381613748 has 24 divisors (see below), whose sum is σ = 678349728. Its totient is φ = 187816736.

The previous prime is 381613747. The next prime is 381613781. The reversal of 381613748 is 847316183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381613747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95315 + ... + 99237.

It is an arithmetic number, because the mean of its divisors is an integer number (28264572).

Almost surely, 2^381613748 is an apocalyptic number.

It is an amenable number.

381613748 is a deficient number, since it is larger than the sum of its proper divisors (296735980).

381613748 is a wasteful number, since it uses less digits than its factorization.

381613748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4303 (or 4301 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 381613748 is about 19534.9366008697. The cubic root of 381613748 is about 725.3395147035.

The spelling of 381613748 in words is "three hundred eighty-one million, six hundred thirteen thousand, seven hundred forty-eight".