381236 has 12 divisors (see below), whose sum is σ = 672000. Its totient is φ = 189240.

The previous prime is 381233. The next prime is 381239. The reversal of 381236 is 632183.

It is an interprime number because it is at equal distance from previous prime (381233) and next prime (381239).

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 3 ways as a sum of consecutive naturals, for example, 515 + ... + 1013.

It is an arithmetic number, because the mean of its divisors is an integer number (56000).

2³⁸¹²³⁶ is an apocalyptic number.

It is an amenable number.

381236 is a deficient number, since it is larger than the sum of its proper divisors (290764).

381236 is a wasteful number, since it uses less digits than its factorization.

381236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694 (or 692 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

The square root of 381236 is about 617.4431147887. The cubic root of 381236 is about 72.5100105083.

The spelling of 381236 in words is "three hundred eighty-one thousand, two hundred thirty-six".