385481 has 2 divisors, whose sum is σ = 385482. Its totient is φ = 385480.

The previous prime is 385471. The next prime is 385493. The reversal of 385481 is 184583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 241081 + 144400 = 491^2 + 380^2 .

It is a cyclic number.

It is not a de Polignac number, because 385481 - 2⁶ = 385417 is a prime.

It is a super-2 number, since 2×385481² = 297191202722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (385471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192740 + 192741.

It is an arithmetic number, because the mean of its divisors is an integer number (192741).

2³⁸⁵⁴⁸¹ is an apocalyptic number.

It is an amenable number.

385481 is a deficient number, since it is larger than the sum of its proper divisors (1).

385481 is an equidigital number, since it uses as much as digits as its factorization.

385481 is an evil number, because the sum of its binary digits is even.

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

The square root of 385481 is about 620.8711621585. The cubic root of 385481 is about 72.7781467434.

The spelling of 385481 in words is "three hundred eighty-five thousand, four hundred eighty-one".