381276 has 72 divisors (see below), whose sum is σ = 1179360. Its totient is φ = 101376.

The previous prime is 381253. The next prime is 381287. The reversal of 381276 is 672183.

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

It is a congruent number.

It is an unprimeable number.

381276 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4240 + ... + 4328.

It is an arithmetic number, because the mean of its divisors is an integer number (16380).

2³⁸¹²⁷⁶ is an apocalyptic number.

381276 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (589680).

381276 is an abundant number, since it is smaller than the sum of its proper divisors (798084).

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

381276 is a wasteful number, since it uses less digits than its factorization.

381276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 118 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 381276 is about 617.4755055871. The cubic root of 381276 is about 72.5125463820.

The spelling of 381276 in words is "three hundred eighty-one thousand, two hundred seventy-six".