381234 has 32 divisors (see below), whose sum is σ = 904320. Its totient is φ = 104832.

The previous prime is 381233. The next prime is 381239. The reversal of 381234 is 432183.

381234 = T₇₇ + T₇₈ + ... + T₁₃₉.

It is a happy number.

381234 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

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

It is a self number, because there is not a number n which added to its sum of digits gives 381234.

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, 1062 + ... + 1374.

It is an arithmetic number, because the mean of its divisors is an integer number (28260).

2³⁸¹²³⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452160).

381234 is an abundant number, since it is smaller than the sum of its proper divisors (523086).

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

381234 is a wasteful number, since it uses less digits than its factorization.

381234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354.

The product of its digits is 576, while the sum is 21.

The square root of 381234 is about 617.4414952042. The cubic root of 381234 is about 72.5098837100.

The spelling of 381234 in words is "three hundred eighty-one thousand, two hundred thirty-four".