381242 has 8 divisors (see below), whose sum is σ = 605556. Its totient is φ = 179392.

The previous prime is 381239. The next prime is 381253. The reversal of 381242 is 242183.

It can be written as a sum of positive squares in 2 ways, for example, as 373321 + 7921 = 611^2 + 89^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5573 + ... + 5640.

2³⁸¹²⁴² is an apocalyptic number.

381242 is a deficient number, since it is larger than the sum of its proper divisors (224314).

381242 is a wasteful number, since it uses less digits than its factorization.

381242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11232.

The product of its digits is 384, while the sum is 20.

The square root of 381242 is about 617.4479735168. The cubic root of 381242 is about 72.5103909007.

The spelling of 381242 in words is "three hundred eighty-one thousand, two hundred forty-two".