485381 has 4 divisors (see below), whose sum is σ = 522732. Its totient is φ = 448032.

The previous prime is 485371. The next prime is 485383. The reversal of 485381 is 183584.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 188356 + 297025 = 434^2 + 545^2 .

It is a de Polignac number, because none of the positive numbers 2^k-485381 is a prime.

It is a super-2 number, since 2×485381² = 471189430322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485383) 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, 18656 + ... + 18681.

It is an arithmetic number, because the mean of its divisors is an integer number (130683).

2⁴⁸⁵³⁸¹ is an apocalyptic number.

It is an amenable number.

485381 is a deficient number, since it is larger than the sum of its proper divisors (37351).

485381 is a wasteful number, since it uses less digits than its factorization.

485381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37350.

The product of its digits is 3840, while the sum is 29.

The square root of 485381 is about 696.6929022173. The cubic root of 485381 is about 78.5888482432.

The spelling of 485381 in words is "four hundred eighty-five thousand, three hundred eighty-one".