381238 has 32 divisors (see below), whose sum is σ = 709632. Its totient is φ = 151200.

The previous prime is 381233. The next prime is 381239. The reversal of 381238 is 832183.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8845 + ... + 8887.

It is an arithmetic number, because the mean of its divisors is an integer number (22176).

2³⁸¹²³⁸ is an apocalyptic number.

381238 is a deficient number, since it is larger than the sum of its proper divisors (328394).

381238 is a wasteful number, since it uses less digits than its factorization.

381238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100.

The product of its digits is 1152, while the sum is 25.

The square root of 381238 is about 617.4447343690. Note that the first 3 decimals coincide. The cubic root of 381238 is about 72.5101373062.

The spelling of 381238 in words is "three hundred eighty-one thousand, two hundred thirty-eight".