381748 has 12 divisors (see below), whose sum is σ = 703360. Its totient is φ = 180792.

The previous prime is 381739. The next prime is 381749. The reversal of 381748 is 847183.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2436 + ... + 2587.

2³⁸¹⁷⁴⁸ is an apocalyptic number.

381748 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

381748 is a deficient number, since it is larger than the sum of its proper divisors (321612).

381748 is a wasteful number, since it uses less digits than its factorization.

381748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5046 (or 5044 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 381748 is about 617.8575887695. The cubic root of 381748 is about 72.5424563058.

The spelling of 381748 in words is "three hundred eighty-one thousand, seven hundred forty-eight".