381036 has 24 divisors (see below), whose sum is σ = 900144. Its totient is φ = 125440.

The previous prime is 381019. The next prime is 381037. The reversal of 381036 is 630183.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (381037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1216 + ... + 1496.

It is an arithmetic number, because the mean of its divisors is an integer number (37506).

2³⁸¹⁰³⁶ is an apocalyptic number.

It is an amenable number.

381036 is an abundant number, since it is smaller than the sum of its proper divisors (519108).

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

381036 is a wasteful number, since it uses less digits than its factorization.

381036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401 (or 399 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 381036 is about 617.2811353022. The cubic root of 381036 is about 72.4973284787.

The spelling of 381036 in words is "three hundred eighty-one thousand, thirty-six".