385455 has 16 divisors (see below), whose sum is σ = 705024. Its totient is φ = 176160.

The previous prime is 385433. The next prime is 385471. The reversal of 385455 is 554583.

It is not a de Polignac number, because 385455 - 2⁶ = 385391 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1731 + ... + 1940.

It is an arithmetic number, because the mean of its divisors is an integer number (44064).

2³⁸⁵⁴⁵⁵ is an apocalyptic number.

385455 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

385455 is a deficient number, since it is larger than the sum of its proper divisors (319569).

385455 is a wasteful number, since it uses less digits than its factorization.

385455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3686.

The product of its digits is 12000, while the sum is 30.

The square root of 385455 is about 620.8502234839. The cubic root of 385455 is about 72.7765104550.

It can be divided in two parts, 3 and 85455, that added together give a palindrome (85458).

The spelling of 385455 in words is "three hundred eighty-five thousand, four hundred fifty-five".