381469 has 4 divisors (see below), whose sum is σ = 416160. Its totient is φ = 346780.

The previous prime is 381467. The next prime is 381481. The reversal of 381469 is 964183.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 381469 - 2¹ = 381467 is a prime.

It is a super-2 number, since 2×381469² = 291037195922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 381469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381461) 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, 17329 + ... + 17350.

It is an arithmetic number, because the mean of its divisors is an integer number (104040).

2³⁸¹⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

381469 is a deficient number, since it is larger than the sum of its proper divisors (34691).

381469 is a wasteful number, since it uses less digits than its factorization.

381469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34690.

The product of its digits is 5184, while the sum is 31.

The square root of 381469 is about 617.6317673177. The cubic root of 381469 is about 72.5247794806.

It can be divided in two parts, 3814 and 69, that added together give a palindrome (3883).

The spelling of 381469 in words is "three hundred eighty-one thousand, four hundred sixty-nine".